Rework bcat Crkbd and Lily58 modifier keys (#9692)

* Re-enable mouse keys to fix Chrome OS media keys

I'm not sure if there's a bug in Chrome OS, QMK, or both, but
EXTRAKEY_ENABLE isn't sufficient for media keys to work on Chrome OS.
Instead, MOUSEKEY_ENABLE is also required.

* Remove unnecessary SPLIT_USB_DETECT for Lily58

I've since swapped my Lily58 back to Elite-C v2 controllers with working
VBUS detection.

* Move Crkbd Esc and Ctrl keys; add some shortcuts

* Move MC_ALTT to userspace for cross-board support

* Sync Lily58 keymap with Crkbd

* Fix typos

3 files changed, 18 insertions, 16 deletions

diff --git a/keyboards/lily58/keymaps/bcat/config.h b/keyboards/lily58/keymaps/bcat/config.h
index f7f08d076a..1809262044 100644
--- a/keyboards/lily58/keymaps/bcat/config.h
+++ b/keyboards/lily58/keymaps/bcat/config.h
@@ -1,6 +1,3 @@
 #pragma once
 
 #define EE_HANDS
-
-/* Work around Elite-C v3 with broken VBUS detection. */
-#define SPLIT_USB_DETECT
diff --git a/keyboards/lily58/keymaps/bcat/keymap.c b/keyboards/lily58/keymaps/bcat/keymap.c
index 7fa65b876f..a194e1c9dc 100644
--- a/keyboards/lily58/keymaps/bcat/keymap.c
+++ b/keyboards/lily58/keymaps/bcat/keymap.c
@@ -1,5 +1,7 @@
 #include QMK_KEYBOARD_H
 
+#include "bcat.h"
+
 enum layer {
     LAYER_DEFAULT,
     LAYER_LOWER,
@@ -10,31 +12,34 @@ enum layer {
 #define LY_LWR MO(LAYER_LOWER)
 #define LY_RSE MO(LAYER_RAISE)
 
-#define KY_CESC LCTL_T(KC_ESC)
+#define KY_CSPC LCTL(KC_SPC)
+#define KY_LOCK LGUI(KC_L)
+#define KY_WINL LGUI(KC_LEFT)
+#define KY_WINR LGUI(KC_RGHT)
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     /* Default layer: http://www.keyboard-layout-editor.com/#/gists/e0eb3af65961e9fd612dcff3ddd88e4f */
     [LAYER_DEFAULT] = LAYOUT(
         KC_EQL,   KC_1,     KC_2,     KC_3,     KC_4,     KC_5,                         KC_6,     KC_7,     KC_8,     KC_9,     KC_0,     KC_MINS,
         KC_TAB,   KC_Q,     KC_W,     KC_E,     KC_R,     KC_T,                         KC_Y,     KC_U,     KC_I,     KC_O,     KC_P,     KC_BSPC,
-        KY_CESC,  KC_A,     KC_S,     KC_D,     KC_F,     KC_G,                         KC_H,     KC_J,     KC_K,     KC_L,     KC_SCLN,  KC_QUOT,
+        KC_ESC,   KC_A,     KC_S,     KC_D,     KC_F,     KC_G,                         KC_H,     KC_J,     KC_K,     KC_L,     KC_SCLN,  KC_QUOT,
         KC_LSFT,  KC_Z,     KC_X,     KC_C,     KC_V,     KC_B,     KC_WBAK,  KC_WFWD,  KC_N,     KC_M,     KC_COMM,  KC_DOT,   KC_SLSH,  KC_RSFT,
-                                      KC_LCTL,  KC_LALT,  LY_LWR,   KC_SPC,   KC_ENT,   LY_RSE,   KC_RGUI,  KC_APP
+                                      KC_LGUI,  KC_LCTL,  LY_LWR,   KC_SPC,   KC_ENT,   LY_RSE,   KC_RALT,  KC_APP
     ),
 
     /* Lower layer: http://www.keyboard-layout-editor.com/#/gists/19ad0d3b5d745fbb2818db09740f5a11 */
     [LAYER_LOWER] = LAYOUT(
         _______,  _______,  _______,  _______,  _______,  _______,                      _______,  _______,  _______,  _______,  _______,  _______,
-        KC_CAPS,  KC_EXLM,  KC_AT,    KC_HASH,  KC_DLR,   KC_PERC,                      KC_CIRC,  KC_AMPR,  KC_ASTR,  KC_LPRN,  KC_RPRN,  _______,
-        _______,  _______,  _______,  _______,  _______,  _______,                      KC_PIPE,  KC_UNDS,  KC_PLUS,  KC_LCBR,  KC_RCBR,  KC_TILD,
-        _______,  KC_APP,   KC_PSCR,  KC_SLCK,  KC_PAUS,  _______,  _______,  _______,  KC_BSLS,  KC_MINS,  KC_EQL,   KC_LBRC,  KC_RBRC,  KC_GRV,
+        MC_ALTT,  KC_EXLM,  KC_AT,    KC_HASH,  KC_DLR,   KC_PERC,                      KC_CIRC,  KC_AMPR,  KC_ASTR,  KC_LPRN,  KC_RPRN,  _______,
+        KY_CSPC,  KY_WINL,  KY_WINR,  KY_LOCK,  KC_WBAK,  KC_WFWD,                      KC_PIPE,  KC_UNDS,  KC_PLUS,  KC_LCBR,  KC_RCBR,  KC_TILD,
+        _______,  KC_APP,   KC_PSCR,  KC_SLCK,  KC_PAUS,  KC_LGUI,  _______,  _______,  KC_BSLS,  KC_MINS,  KC_EQL,   KC_LBRC,  KC_RBRC,  KC_GRV,
                                       _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______
     ),
 
     /* Raise layer: http://www.keyboard-layout-editor.com/#/gists/912be7955f781cdaf692cc4d4c0b5823 */
     [LAYER_RAISE] = LAYOUT(
         _______,  _______,  _______,  _______,  _______,  _______,                      _______,  _______,  _______,  _______,  _______,  _______,
-        _______,  KC_1,     KC_2,     KC_3,     KC_4,     KC_5,                         KC_6,     KC_7,     KC_8,     KC_9,     KC_0,     _______,
+        KC_CAPS,  KC_1,     KC_2,     KC_3,     KC_4,     KC_5,                         KC_6,     KC_7,     KC_8,     KC_9,     KC_0,     _______,
         _______,  KC_F1,    KC_F2,    KC_F3,    KC_F4,    KC_F5,                        KC_LEFT,  KC_DOWN,  KC_UP,    KC_RGHT,  KC_F11,   KC_DEL,
         _______,  KC_F6,    KC_F7,    KC_F8,    KC_F9,    KC_F10,   _______,  _______,  KC_HOME,  KC_PGDN,  KC_PGUP,  KC_END,   KC_F12,   KC_INS,
                                       _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______
@@ -50,6 +55,6 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     ),
 };
 
-layer_state_t layer_state_set_user(layer_state_t state) {
+layer_state_t layer_state_set_keymap(layer_state_t state) {
     return update_tri_layer_state(state, LAYER_LOWER, LAYER_RAISE, LAYER_ADJUST);
 }
diff --git a/keyboards/lily58/keymaps/bcat/readme.md b/keyboards/lily58/keymaps/bcat/readme.md
index 57b7929d3b..270e747311 100644
--- a/keyboards/lily58/keymaps/bcat/readme.md
+++ b/keyboards/lily58/keymaps/bcat/readme.md
@@ -11,24 +11,24 @@ using layers for numbers and symbols, so in practice this goes unused.
 placed in the same positions as on the ErgoDox EZ. (There's no real reason for
 this; I just had to do _something_ with those keys.)
 
-* The extra thumb keys are used for dedicated Ctrl/Menu keys (not super useful)
-and browser back/forward navigation keys (actually more useful than expected).
+* The extra thumb keys are used for dedicated Super/Menu keys, as well as
+browser back/forward navigation keys.
 
 ## Default layer
 
-![Default layer layout](https://i.imgur.com/wx1brJV.png)
+![Default layer layout](https://i.imgur.com/FNITWJ0.png)
 
 ([KLE](http://www.keyboard-layout-editor.com/#/gists/e0eb3af65961e9fd612dcff3ddd88e4f))
 
 ## Lower layer
 
-![Lower layer layout](https://i.imgur.com/9JlbNAd.png)
+![Lower layer layout](https://i.imgur.com/JVF1p1Q.png)
 
 ([KLE](http://www.keyboard-layout-editor.com/#/gists/19ad0d3b5d745fbb2818db09740f5a11))
 
 ## Raise layer
 
-![Raise layer layout](https://i.imgur.com/Ue8tu1v.png)
+![Raise layer layout](https://i.imgur.com/NaWTavA.png)
 
 ([KLE](http://www.keyboard-layout-editor.com/#/gists/912be7955f781cdaf692cc4d4c0b5823))