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

1 files changed, 5 insertions, 5 deletions

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))