Remove execution_mode dependencies from InstalledScriptsTab (#50)

- Remove ExecutionModeBadge import and usage
- Update filtering logic to use server_name presence instead of execution_mode
- Simplify update script logic by removing mode property
- Update Terminal component call to determine mode based on server presence
- Replace ExecutionModeBadge in table with simple text display
- Maintain backend API compatibility by keeping execution_mode in mutations
- Use nullish coalescing operator (??) for better null handling

scripts/json/zigbee2mqtt.json

@@ -12,7 +12,7 @@
   "documentation": "https://www.zigbee2mqtt.io/guide/getting-started/",
   "website": "https://www.zigbee2mqtt.io/",
   "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/zigbee2mqtt.webp",
-  "config_path": "/opt/zigbee2mqtt/data/configuration.yaml",
+  "config_path": "debian: /opt/zigbee2mqtt/data/configuration.yaml | alpine: /var/lib/zigbee2mqtt/configuration.yaml",
   "description": "Zigbee2MQTT is an open-source software project that allows you to use Zigbee-based smart home devices (such as those sold under the Philips Hue and Ikea Tradfri brands) with MQTT-based home automation systems, like Home Assistant, Node-RED, and others. The software acts as a bridge between your Zigbee devices and MQTT, allowing you to control and monitor these devices from your home automation system.",
   "install_methods": [
     {