hypr: switch default browser hotkey to Chrome

Firefox isn't installed; SUPER+W now launches google-chrome-stable,
and the opacity-override window rule matches Chrome's window class too.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.config/hypr/config/variables.lua

@@ -2,7 +2,7 @@
 
 TERMINAL     = "kitty"
 FILE_MANAGER = "dolphin"
-BROWSER      = "firefox"
+BROWSER      = "google-chrome-stable"
 EDITOR       = "gnome-text-editor --new-window"
 CALCULATOR   = "gnome-calculator"
 

.config/hypr/config/windowrules.lua

@@ -70,7 +70,7 @@ hl.window_rule({
 -- Opacity Overrides
 local terminals = "^(kitty|ghostty|[Kk]onsole|Alacritty|gnome-terminal|xfce[0-9]?-terminal)$"
 
-hl.window_rule({ match = { class = "^(firefox|zen)$" }, opacity = "1.0 override" })
+hl.window_rule({ match = { class = "^(firefox|zen|[Gg]oogle-chrome)$" }, opacity = "1.0 override" })
 hl.window_rule({ match = { class = terminals }, opacity = "1.0 override" }) -- Override opacity in favor of terminal settings for opacity. If your terminal doesn't support transparency, you can remove this rule.
 hl.window_rule({ match = { class = "^(mpv|org.kde.haruna|.*plex.*|org\\.kde\\.gwenview|.*vlc.*)$" }, opacity = "1.0 override" })