restructured directories + modularized btrfs mount

bundles/fonts.nix

@@ -0,0 +1,10 @@
+{ config, pkgs, ... }:
+
+{
+  users.users.jawz.packages = with pkgs; ([
+    (nerdfonts.override {
+      fonts = [ "CascadiaCode" "ComicShannsMono" "Iosevka" ];
+    })
+    symbola
+  ]);
+}