fix(store): remove Android and iOS plugins, closes #1256 (#1695)

The Android and iOS support introduced on #1011 is not really supported - the Tauri path API correctly resolves the cache directory on mobile, and we can access those directly using Rust code.

This is a breaking change because we no longer uses the same directory to store the files - app_cache_dir returns a different location

examples/api/src/views/Shell.svelte

@@ -59,7 +59,7 @@
   }
 
   function writeToStdin() {
-    child.write(stdin).catch(onMessage);
+    child.write(`${stdin}\n`).catch(onMessage);
   }
 </script>