feat: Move wezterm-git input to overlay

So I don't have to reference the input directly.

modules/home/programs/wezterm/default.nix

@@ -26,8 +26,7 @@ in {
       package =
         if isNotNixOS
         then pkgs.emptyDirectory
-        # TODO: make this an overlay.
-        else inputs.wezterm.packages."${pkgs.system}".default;
+        else pkgs.wezterm;
 
       # TODO: create `local config` & return it seperately, so other modules can
       # insert config in the middle

modules/home/wayland/hyprland/default.nix

@@ -2,7 +2,6 @@
   lib,
   config,
   inputs,
-  system,
   pkgs,
   ...
 }: let
@@ -99,9 +98,8 @@ in {
       in {
         monitor = lib.attrValues cfg.monitors;
 
-        # TODO: Use overlay once it's made.
         # TODO: Set this in a default apps module.
-        "$terminal" = lib.getExe inputs.wezterm.packages."${system}".default;
+        "$terminal" = lib.getExe pkgs.wezterm;
         "$launcher" = "${lib.getExe pkgs.wofi} --show drun";
         # TODO: Set this in a default apps module.
         "$browser" = "${lib.getExe pkgs.floorp}";

overlays/wezterm/default.nix

@@ -0,0 +1,3 @@
+{inputs, ...}: final: prev: {
+  wezterm = inputs.wezterm.packages."${prev.system}".default;
+}