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/flexoki-light/apps/btop.theme

@@ -0,0 +1,78 @@
+# Main bg
+theme[main_bg]="#FFFCF0"
+
+# Main text color
+theme[main_fg]="#100F0F"
+
+# Title color for boxes
+theme[title]="#100F0F"
+
+# Highlight color for keyboard shortcuts
+theme[hi_fg]="#205EA6"
+
+# Background color of selected item in processes box
+theme[selected_bg]="#414868"
+
+# Foreground color of selected item in processes box
+theme[selected_fg]="#100F0F"
+
+# Color of inactive/disabled text
+theme[inactive_fg]="#6F6E69"
+
+# Misc colors for processes box including mini cpu graphs, details memory graph and details status text
+theme[proc_misc]="#205EA6"
+
+# Cpu box outline color
+theme[cpu_box]="#6F6E69"
+
+# Memory/disks box outline color
+theme[mem_box]="#6F6E69"
+
+# Net up/down box outline color
+theme[net_box]="#6F6E69"
+
+# Processes box outline color
+theme[proc_box]="#6F6E69"
+
+# Box divider line and small boxes line color
+theme[div_line]="#6F6E69"
+
+# Temperature graph colors
+theme[temp_start]="#66800B"
+theme[temp_mid]="#BC5215"
+theme[temp_end]="#AF3029"
+
+# CPU graph colors
+theme[cpu_start]="#66800B"
+theme[cpu_mid]="#BC5215"
+theme[cpu_end]="#AF3029"
+
+# Mem/Disk free meter
+theme[free_start]="#66800B"
+theme[free_mid]="#BC5215"
+theme[free_end]="#AF3029"
+
+# Mem/Disk cached meter
+theme[cached_start]="#66800B"
+theme[cached_mid]="#BC5215"
+theme[cached_end]="#AF3029"
+
+# Mem/Disk available meter
+theme[available_start]="#66800B"
+theme[available_mid]="#BC5215"
+theme[available_end]="#AF3029"
+
+# Mem/Disk used meter
+theme[used_start]="#66800B"
+theme[used_mid]="#BC5215"
+theme[used_end]="#AF3029"
+
+# Download graph colors
+theme[download_start]="#66800B"
+theme[download_mid]="#BC5215"
+theme[download_end]="#AF3029"
+
+# Upload graph colors
+theme[upload_start]="#66800B"
+theme[upload_mid]="#BC5215"
+theme[upload_end]="#AF3029"

themes/palettes/flexoki-light/apps/chromium.theme

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+242,240,229

themes/palettes/flexoki-light/apps/neovim.lua

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+return {
+  {
+    "kepano/flexoki-neovim",
+    priority = 1000,
+  },
+  {
+    "LazyVim/LazyVim",
+    opts = {
+      colorscheme = "flexoki-light",
+    },
+  },
+}

themes/palettes/flexoki-light/apps/vscode.json

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+{
+  "name": "flexoki-light",
+  "extension": "shadesOfBuntu.flexoki-light"
+}