treewide: upstreaming changes

Signed-off-by: s0me1newithhand7s <117505144+s0me1newithhand7s@users.noreply.github.com>

hand7s/programs/zellij.nix

@@ -1,7 +1,24 @@
-{...}: {
+{
+    pkgs,
+    lib,
+    ...
+}: {
     programs = {
         zellij = {
             enable = true;
+            settings = {
+                default_shell = "${lib.getExe pkgs.fish}";
+                show_startup_tips = false;
+                show_release_notes = false;
+                simplified_ui = true;
+
+                ui = {
+                    pane_frames = {
+                        rounded_corners = true;
+                        hide_session_name = false;
+                    };
+                };
+            };
         };
     };
 }