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

.changes/config.json

@@ -68,6 +68,7 @@
         "os",
         "process",
         "shell",
+        "store",
         "updater"
       ]
     },
@@ -90,6 +91,7 @@
         "os-js",
         "process-js",
         "shell-js",
+        "store-js",
         "updater-js"
       ],
       "postversion": "pnpm install --no-frozen-lockfile"

.changes/store-remove-mobile-plugin.md

@@ -0,0 +1,5 @@
+---
+"store": patch:breaking
+---
+
+Implement mobile support in Rust directly. This changes the store directories, invalidating all previously generated stores.