🧹 Moved almost all files to /modules. Moved some code to separate files

modules/fonts.nix

@@ -0,0 +1,14 @@
+{ pkgs, ... }:
+{
+
+  fonts = {
+    fontconfig.enable = true;
+    packages = with pkgs; [
+      (nerdfonts.override { fonts = [ "JetBrainsMono" ]; })
+      jetbrains-mono
+      # The line below will replace the lines above in 25.05
+      # nerd-fonts.jetbrains-mono
+    ];
+  };
+
+}