feat: Flake | revamp entire flake (#1)

Reviewed-on: #1

hosts/common/optional/1password.nix

@@ -0,0 +1,14 @@
+{
+  config,
+  ...
+}:
+
+{
+  programs = {
+    _1password.enable = true;
+    _1password-gui = {
+      enable = true;
+      polkitPolicyOwners = [ config.hostSpec.username ];
+    };
+  };
+}