feat: add monorepo support for Android builds (#2352)

## Description

Based on:
#2337 by
@morganick.
Please see the original PR and its description for details.

See:
#2337 (review)
for discussion why new PR has been created.

## Changes

- **Using node resolver to find react native package for better monorepo
support**
- **Using rootDir instead of projectDir**
- **Change the order of path lookup**

## Test code and steps to reproduce

I've tested it using our both example apps and additionally I've created
fresh RN app
and tested the Android build there.


## Checklist

- [x] Ensured that CI passes

---------

Co-authored-by: Nick Morgan <morganick@users.noreply.github.com>

android/build.gradle

@@ -152,10 +152,26 @@ android {
 repositories {
     maven {
         // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
-        // Matches the RN Hello World template
+
+        // First look for the standard location of react-native, as in RN Hello World template
         // https://github.com/facebook/react-native/blob/1e8f3b11027fe0a7514b4fc97d0798d3c64bc895/local-cli/templates/HelloWorld/android/build.gradle#L21
-        url "$projectDir/../node_modules/react-native/android"
+        // TODO(kkafar): Note, that in latest template app https://github.com/react-native-community/template/blob/0f4745b7a9d84232aeedec2def8d75ab9b050d11/template/android/build.gradle
+        // this is not specified at all.
+        File standardRnAndroidDirLocation = file("$rootDir/../node_modules/react-native/android")
+        if (standardRnAndroidDirLocation.exists()) {
+            url standardRnAndroidDirLocation
+        } else {
+            // We're in non standard setup - try to use node resolver to locate the react-native package.
+            File reactNativePackage = file(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim())
+            def rnAndroidDirLocation = "$reactNativePackage.parentFile/android"
+            if (reactNativePackage.exists()) {
+                url rnAndroidDirLocation
+            } else {
+                println "[RNScreens] Failed to resolve react-native directory. Attempted locations: ${standardRnAndroidDirLocation}, ${rnAndroidDirLocation}"
+            }
+        }
     }
+
     mavenCentral()
     mavenLocal()
     google()