Theme updates

- pina colors for kitty and nvim
- drop obsidian theme
- update theme notes
- switch default from pina to gruvbox

src_files/.config/obsidian/appearance.json

@@ -4,5 +4,5 @@
   "baseFontSize": 20,
   "enabledCssSnippets": [],
   "translucency": false,
-  "cssTheme": "Obsidian gruvbox"
+  "cssTheme": ""
 }