fix: install and enable more packages

- install and enable plymouth
- install gopass and yambar

configuration.nix

@@ -14,6 +14,11 @@
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
+  # Splash screen
+  boot.plymouth = {
+    enable = true;
+  };
+
   networking.hostName = "nixos-sparrow-lt";
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
@@ -170,6 +175,7 @@
       deno
       distrobox
       firefox
+      gopass
       lf
       luajitPackages.luarocks
       mage
@@ -178,6 +184,7 @@
       tmux
       unstable.neovim
       xdg-user-dirs
+      yambar
     ];
   };