feat: Add an API for creating direct share shortcuts

example/android/app/src/main/AndroidManifest.xml

@@ -23,8 +23,8 @@
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
-            </intent-filter>
-        </activity>
+              </intent-filter>
+            </activity>
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
         <meta-data