🖼 Styled Rofi, calc and disk apps, gcc

- Formatted theme for Rofi
- Moved Rofi config to .rasi file, because of troubles styling with programs.rofi
- Added gnome-calculator and gnome-disk
- Added GCC
- Open Calc by pressing SUPER + K
- Opens terminal in workspace 2 at boot

development.nix

@@ -11,6 +11,7 @@
     rustup
     nodejs
     pnpm
+    gcc # Required for C, Rust and others
     # Formatters
     nixd
   ];