refactor: implement component-based architecture for enhanced maintainability

- Reorganize directory structure into core/, features/, and themes/
- Colocate application Nix logic, configs, scripts, and theme overrides
- Implement 'Inversion of Control' for theming: apps now pull theme-specific layouts
- Update flake.nix and shared library paths to match the new structure
- Document the new Feature-Centric architecture in README.md

themes/palettes/default.nix

@@ -0,0 +1,44 @@
+let
+  themesDir = ./.;
+  
+  # Get all directories in the themes folder that have a colors.toml file
+  allEntries = builtins.readDir themesDir;
+  directories = builtins.filter (name: 
+    allEntries.${name} == "directory" && builtins.pathExists (themesDir + "/${name}/colors.toml")
+  ) (builtins.attrNames allEntries);
+
+  readTheme = name:
+    let
+      toml = builtins.fromTOML (builtins.readFile (themesDir + "/${name}/colors.toml"));
+      
+      # Helper to strip '#' from color codes
+      stripHash = s: builtins.replaceStrings ["#"] [""] s;
+      
+    in {
+      inherit name;
+      author = "nomarchy";
+      palette = {
+        base00 = stripHash toml.background;
+        base01 = stripHash toml.color0;
+        base02 = stripHash toml.color8;
+        base03 = stripHash toml.color8;
+        base04 = stripHash toml.color7;
+        base05 = stripHash toml.foreground;
+        base06 = stripHash toml.color15;
+        base07 = stripHash toml.color15;
+        base08 = stripHash toml.color1;
+        base09 = stripHash toml.color3;
+        base0A = stripHash toml.color3;
+        base0B = stripHash toml.color2;
+        base0C = stripHash toml.color6;
+        base0D = stripHash toml.color4;
+        base0E = stripHash toml.color5;
+        base0F = stripHash toml.color1;
+      };
+    };
+
+in
+  builtins.listToAttrs (map (name: {
+    inherit name;
+    value = readTheme name;
+  }) directories)