feat: neofetch, some clis and stuff

modules/applications/shells/common.nix

@@ -0,0 +1,4 @@
+{
+  shellInit =
+    "neofetch --package_managers on --cpu_brand on --cpu_cores on --memory_percent on --memory_display infobar --os_arch on";
+}

modules/applications/shells/fish.nix

@@ -1,13 +1,12 @@
 { pkgs, ... }:
-let shellAliases = import ./aliases.nix;
+let
+  shellAliases = import ./aliases.nix;
+  common = import ./common.nix;
 in {
   home-manager.users.adrielus.programs.fish = {
     inherit shellAliases;
+    shellInit = common.shellInit;
 
     enable = true;
-    # plugins = [{
-    #   name = "agnoster";
-    #   src = pkgs.agnoster;
-    # }];
   };
 }