Clean up leftovers from the source theme

- Light Zed themes declared appearance 'dark' although they use the light
  palette; set them to 'light' so Zed picks the right UI mode.
- Dark shell.toml still described coral/warm legacy accents.
- Light hyprland.lua leaked the author's home path as its source comment.

zed.json

@@ -5,7 +5,7 @@
       "themes": [
         {
           "name": "Omarchy",
-          "appearance": "dark",
+          "appearance": "light",
           "style": {
             "background": "#f0ead990",
             "editor.background": "#f0ead990",