Omarchy Theme Installer (#150)

* Add omarchy theme remove

* Add theme installer

* Add migration to make theme management scripts executable

* Refactor theme installation script to simplify directory structure and remove unnecessary symlinks.

The script now directly clones themes into the ~/.config/omarchy/themes directory and updates paths accordingly for backgrounds and fonts.

* Update permissions for theme scripts and remove unnecessary migration file

* Refactor theme installation script to always use swaybg-next

* Remove fonts from omarchy-theme-install

* Refactor omarchy-theme-remove by swiitching to theme dir and removing unnecessary symlink checks

* Refactor theme installer to use omarchy-theme-set

* Fix Omarchy theme remove removing current theme and throwing error

* Making theme management scripts quiet

bin/omarchy-theme-remove

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+# omarchy-theme-remove: Remove a theme from Omarchy by name
+# Usage: omarchy-theme-remove <theme-name>
+
+THEME_NAME="$1"
+THEMES_DIR="$HOME/.config/omarchy/themes"
+BACKGROUND_DIR="$HOME/.config/omarchy/backgrounds"
+CURRENT_DIR="$HOME/.config/omarchy/current"
+
+THEME_PATH="$THEMES_DIR/$THEME_NAME"
+BACKGROUND_PATH="$BACKGROUND_DIR/$THEME_NAME"
+
+set -e
+
+if [ -z "$1" ]; then
+  echo "Usage: omarchy-theme-remove <theme-name>"
+  exit 1
+fi
+
+# Count available themes (directories in ~/.config/omarchy/themes)
+THEMES=($(find "$THEMES_DIR" -mindepth 1 -maxdepth 1 -type d | sort))
+if [ ${#THEMES[@]} -le 1 ]; then
+  echo "Error: Cannot remove the last remaining theme. At least one theme must be installed."
+  exit 1
+fi
+
+# Check if theme exists before attempting removal
+if [ ! -d "$THEME_PATH" ]; then
+  echo "Error: Theme '$THEME_NAME' not found."
+  exit 1
+fi
+
+# Check if the theme to be removed is the current theme
+IS_CURRENT=0
+# Use readlink -f to resolve symlinks and get the absolute path
+if [ "$(readlink -f "$CURRENT_DIR/theme")" = "$(readlink -f "$THEME_PATH")" ]; then
+  IS_CURRENT=1
+fi
+
+# If it is, switch to the next theme before removing
+if [ $IS_CURRENT -eq 1 ]; then
+  "$HOME/.local/share/omarchy/bin/omarchy-theme-next"
+fi
+
+# Now remove the theme directory and backgrounds for THEME_NAME
+rm -rf "$THEME_PATH"
+
+if [ -d "$BACKGROUND_PATH" ]; then
+  rm -rf "$BACKGROUND_PATH"
+fi
+
+notify-send "Theme '$THEME_NAME' removed." -t 2000