fix(fdroid): force all expo modules to build from source

Set expo.autolinking.buildFromSource: [".*"] so F-Droid mainline's
scanner doesn't see the prebuilt .aar + -sources.jar files that Expo
ships inside every expo-* npm package's local-maven-repo/ directory.
When this flag is set, expo-modules-autolinking routes each module
through a Gradle source build instead of consuming the prebuilt AAR.

Verified: `./gradlew assembleRelease` succeeds (11 min, 92 MB APK)
with this flag and no prebuilt AARs consumed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

package.json

@@ -48,6 +48,11 @@
   "expo": {
     "install": {
       "exclude": []
+    },
+    "autolinking": {
+      "buildFromSource": [
+        ".*"
+      ]
     }
   }
 }