feat: Added zen browser

Also disable seafile (very slow and can't upload any files from ios / ipados)

flake.nix

@@ -175,6 +175,12 @@
       url = "git+file:/home/servius/Projects/command-runner";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    zen-browser = {
+      url = "github:0xc000022070/zen-browser-flake";
+      # IMPORTANT: we're using "libgbm" and is only available in unstable so ensure
+      # to have it up-to-date or simply don't specify the nixpkgs input
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs = {