feat: add hyprmod to preinstalled packages and style menu

[azzenabidi]

Summary

• Added HyprMod to the preinstalled package list
• Integrated HyprMod into the Style submenu (Super+Alt+Space)
  cj
  This provides a GUI to tinker with hyprland setup in omarchy in a safe env. It does not touch the original config files.

Changes

• install/omarchy-base.packages: Added hyprmod to the package list
• bin/omarchy-menu: Added HyprMod option to the Style submenu that launches hyprmod

[Copilot]

Pull request overview

This PR adds HyprMod to Omarchy’s default install set and exposes it as a launchable option from the Style submenu in the omarchy-menu launcher.

Changes:

• Add hyprmod to the base preinstalled package list.
• Add a “HyprMod” entry under the Style submenu in omarchy-menu.

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Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
install/omarchy-base.packages	Adds hyprmod to the default package set installed during base setup.
bin/omarchy-menu	Adds a HyprMod item to the Style submenu (and updates the submenu option list).

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