UX Refactor: Pauses, Status & WiFi

- Implemented global `_pause()` logic across all modules (`utils`, `gaming`, `firmware`, etc.), replacing hardcoded `read -p` calls to standardize exit pauses.
- Unified MangoHud installation into a single command (`apt install -y mangohud:i386`) for gaming and legacy branches.
- Refactored `_inst()` to return `*` instead of `(installed)`, moving the function globally to `utils.sh` and removing duplicates from helpers.
- Enhanced Broadcom WiFi detection with expanded grep patterns ('network controller', 'wireless', etc.) and ID fallback (`14e4`).
- Updated `_run_cmd` to integrate the new pause logic for consistent workflow interruptions during script execution.

modules/bullseye/extras.sh

@@ -490,6 +490,7 @@ _cat_general_bullseye() {
                 if _confirm "Firmware Scan" "Scan for firmware updates now?"; then
                     sudo fwupdmgr refresh --force 2>/dev/null || true
                     sudo fwupdmgr get-updates 2>&1 || true
+                    _pause
                 fi
                 ;;
             nvme-cli)
@@ -505,6 +506,7 @@ _cat_general_bullseye() {
         esac
     done
     echo -e "${GREEN}System tools installed.${NC}"
+    _pause
 }
 
 _cat_fetch_bullseye() {