Finish precaching, background updates, and placeholder items

.gitignore

@@ -14,3 +14,4 @@ bin
 .venv
 .vscode
 venv/
+lib

plugin.program.autowidget/clear_cache_single.py

@@ -1,7 +1,8 @@
+from resources.lib.common import cache
 from resources.lib.common import utils
 
 
 if __name__ == "__main__":
     target = utils.get_infolabel("ListItem.Property(autoCache)")
     if target:
-        utils.clear_cache(target)
+        cache.clear_cache(target)

plugin.program.autowidget/main.py

@@ -5,9 +5,8 @@
 
 
 if __name__ == "__main__":
-    _plugin = sys.argv[0]
     _handle = int(sys.argv[1])
     _params = sys.argv[2][1:]
 
     with utils.timing(_params):
-        router.dispatch(_plugin, _handle, _params)
+        router.dispatch(_handle, _params)