[expo-sharing] Fixed sharing external URIs on Android (#9223)

# Why
Fixes #9222.

# How
According to [Android docs](https://developer.android.com/reference/androidx/core/content/FileProvider#Spe

[expo-sharing] Fixed sharing external URIs on Android (#9223)

# Why
Fixes #9222.

# How
According to [Android docs](https://developer.android.com/reference/androidx/core/content/FileProvider#SpecifyFiles), `FileProvider` should have added `external-files` path in order to be able to access locations like `DCIM` or `Downloads`.
I added that line to `[sharing_provider_paths.xml](https://github.com/expo/expo/blob/master/packages/expo-sharing/android/src/main/res/xml/sharing_provider_paths.xml)`.

That fixed the issue, but after that I encountered following exception in Android Studio only:
```
E/DatabaseUtils: Writing exception to parcel
java.lang.SecurityException: Permission Denial: reading expo.modules.sharing.SharingFileProvider uri content://host.exp.exponent.SharingFileProvider/expo_external_files/Download/IMG_2704.PNG from pid=16627, uid=1000 requires the provider be exported, or grantUriPermission()
at android.content.ContentProvider.enforceReadPermissionInner(ContentProvider.java:820)
at android.content.ContentProvider$Transport.enforceReadPermission(ContentProvider.java:684)
at android.content.ContentProvider$Transport.enforceFilePermission(ContentProvider.java:674)
at android.content.ContentProvider$Transport.openTypedAssetFile(ContentProvider.java:548)
at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:327)
at android.os.Binder.execTransactInternal(Binder.java:1154)
at android.os.Binder.execTransact(Binder.java:1123)
```
However, photos were sharing correctly, but I managed to fix it. I [followed the docs](https://developer.android.com/reference/androidx/core/content/FileProvider#Permissions) and updated `Intent` creation in `SharingModule.createSharingIntent()` by replacing `putExtra()` with `setData()` which resolved exception above.

# Test Plan
I only tested my changes using demo code from issue on API 29 & 30.

Sources I used:
- [Android `FileProvider `docs](https://developer.android.com/reference/androidx/core/content/FileProvider)
- [Android `Intent` docs](https://developer.android.com/reference/android/content/Intent.html)
- [This article](https://medium.com/@quiro91/sharing-files-through-intents-part-2-fixing-the-permissions-before-lollipop-ceb9bb0eec3a), however it made me a bit confused about `Intent.FLAG_GRANT_READ_URI_PERMISSION` flag

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