chore: Update package.json version to 0.0.2 and add .gitmodules to the ignore list

package.json

 {
   "name": "@polycentric/leveldb-capacitor-plugin",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "type": "module",
   "description": "LevelDB plugin for Capacitor supporting iOS and Android",
   "main": "dist/plugin.cjs.js",
@@ -12,7 +12,8 @@
     "android/build.gradle",
     "dist/",
     "ios/Plugin/",
-    "PolycentricLeveldbCapacitorPlugin.podspec"
+    "PolycentricLeveldbCapacitorPlugin.podspec",
+    ".gitmodules"
   ],
   "author": "aidan",
   "license": "MIT",
@@ -26,6 +27,7 @@
     "native"
   ],
   "scripts": {
+    "postinstall": "git submodule update --init --recursive",
     "verify": "npm run verify:ios && npm run verify:android && npm run verify:web",
     "verify:ios": "cd ios && pod install && xcodebuild -workspace Plugin.xcworkspace -scheme Plugin -destination generic/platform=iOS && cd ..",
     "verify:android": "cd android && ./gradlew clean build test && cd ..",