[Gekidou] retry post (#6293)

* Add try again functionality to failed posts

* Fix attach files on Android

* feedback review

* Prevent android crash when uploading files for the first time

* Update the timestamp for updateAt when retrying to post

* Add POST TIME TO FAIL

* use function isPostFailed

android/app/src/main/java/com/mattermost/rnbeta/MattermostManagedModule.java

@@ -110,6 +110,23 @@ public class MattermostManagedModule extends ReactContextBaseJavaModule {
         return "MattermostManaged";
     }
 
+    @ReactMethod
+    public void getFilePath(String filePath, Promise promise) {
+        Activity currentActivity = getCurrentActivity();
+        WritableMap map = Arguments.createMap();
+
+        if (currentActivity != null) {
+            Uri uri = Uri.parse(filePath);
+            String path = RealPathUtil.getRealPathFromURI(currentActivity, uri);
+            if (path != null) {
+                String text = "file://" + path;
+                map.putString("filePath", text);
+            }
+        }
+
+        promise.resolve(map);
+    }
+
     @ReactMethod
     public void isRunningInSplitView(final Promise promise) {
         WritableMap result = Arguments.createMap();