Update taffybar (ScalingImage refactor), add toggle keybinding

- Bump taffybar submodule with ScalingImage refactor replacing autoSizeImage
- Add hyper+slash keybinding for toggle_taffybar
- Simplify mprisWidget wrapper in taffybar.hs
- Update flake.locks for gtk-sni-tray
- Add codex trust for taffybar submodule
- Add waybar widget ideas notes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

dotfiles/config/taffybar/flake.lock

@@ -115,11 +115,11 @@
     "gtk-sni-tray": {
       "flake": false,
       "locked": {
-        "lastModified": 1770573499,
-        "narHash": "sha256-UAa68CKZSgHfGkL7yUoOMsjceL1vVO3PLhLF152Dt10=",
+        "lastModified": 1770581933,
+        "narHash": "sha256-sLA+v5KpHWSrjXu3Gnt1A/+F3+4FojWGeTPN5JJxWDw=",
         "owner": "taffybar",
         "repo": "gtk-sni-tray",
-        "rev": "147853f91ae349626fc7438690bfae9a3a2fcc3c",
+        "rev": "28eadf97977197bf5bd97855b9991034e9a71322",
         "type": "github"
       },
       "original": {
@@ -311,8 +311,8 @@
         "xmonad-contrib": "xmonad-contrib"
       },
       "locked": {
-        "lastModified": 1770577415,
-        "narHash": "sha256-o5PIARO8dv1KFeBK0d3kI4voZ3YwIkQSXDc29NF4Jhg=",
+        "lastModified": 1770581947,
+        "narHash": "sha256-5Qpkw5oAd0nZAdOV9v/ztAUFoHOxgDbNjGNIYpAWESs=",
         "path": "/home/imalison/dotfiles/dotfiles/config/taffybar/taffybar",
         "type": "path"
       },