Initial skeleton of multiple camera support.

src/localize/languages/en.json

@@ -87,7 +87,8 @@
         "frigate": "Frigate menu / Default view",
         "frigate_ui": "Frigate user Interface",
         "fullscreen": "Fullscreen",
-        "download": "Download event media"
+        "download": "Download event media",
+        "cameras": "Camera selection"
       },
       "mode": "Menu mode",
       "modes": {
@@ -152,7 +153,8 @@
     "invalid_configuration_no_hint": "No location hint available (bad or missing type?)",
     "upgrade_available": "An automated card configuration upgrade is available, please visit the visual card editor",
     "missing_webrtc": "WebRTC component not found",
-    "no_frigate_camera_name": "Cannot autodetect Frigate camera name, you need to either set camera_entity and / or frigate.camera_name",
+    "no_cameras": "No cameras found, you must configure at least one camera configured with a camera_entity or camera_name",
+    "duplicate_frigate_camera_name": "Duplicate Frigate camera name, use the 'id' parameter to uniquely identify them",
     "could_not_render_elements": "Could not render picture elements",
     "invalid_elements_config": "Invalid picture elements configuration",
     "jsmpeg_no_sign": "Could not retrieve or sign JSMPEG websocket path",