Fix tests by downgrading AppCompat and fixing lint issue

Author: lfkellogg

firebase-appdistribution/firebase-appdistribution.gradle

@@ -60,7 +60,7 @@ dependencies {
 
     compileOnly 'com.google.auto.value:auto-value-annotations:1.6.5'
     annotationProcessor 'com.google.auto.value:auto-value:1.6.5'
-    implementation 'androidx.appcompat:appcompat:1.5.1'
+    implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation "androidx.browser:browser:1.3.0"
     implementation "androidx.constraintlayout:constraintlayout:2.1.4"
 

firebase-appdistribution/src/main/java/com/google/firebase/appdistribution/impl/FeedbackActivity.java

@@ -18,6 +18,7 @@
 import android.os.Bundle;
 import android.text.method.LinkMovementMethod;
 import android.view.View;
+import android.widget.Button;
 import android.widget.EditText;
 import android.widget.ImageView;
 import android.widget.TextView;
@@ -63,6 +64,8 @@ private void setupView() {
     TextView infoTextView = this.findViewById(R.id.infoText);
     infoTextView.setText(infoText);
     infoTextView.setMovementMethod(LinkMovementMethod.getInstance());
+    Button submitButton = this.findViewById(R.id.submitButton);
+    submitButton.setOnClickListener(this::submitFeedback);
 
     Bitmap thumbnail = readThumbnail();
     if (thumbnail != null) {

firebase-appdistribution/src/main/res/layout/activity_feedback.xml

@@ -36,7 +36,6 @@
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_marginTop="24dp"
-      android:onClick="submitFeedback"
       android:text="Submit"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintHorizontal_bias="0.5"