Added feedback icon

app/src/main/java/eu/faircode/email/ActivityView.java

@@ -303,7 +303,7 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
             }));
 
         if (BuildConfig.BETA_RELEASE && Helper.getIntentIssue(this).resolveActivity(pm) != null)
-            extra.add(new NavMenuItem(R.drawable.baseline_warning_24, R.string.menu_issue, new Runnable() {
+            extra.add(new NavMenuItem(R.drawable.baseline_feedback_24, R.string.menu_issue, new Runnable() {
                 @Override
                 public void run() {
                     drawerLayout.closeDrawer(drawerContainer);

app/src/main/res/drawable/baseline_feedback_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0"
+        android:tint="?attr/colorControlNormal">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M20,2L4,2c-1.1,0 -1.99,0.9 -1.99,2L2,22l4,-4h14c1.1,0 2,-0.9 2,-2L22,4c0,-1.1 -0.9,-2 -2,-2zM13,14h-2v-2h2v2zM13,10h-2L11,6h2v4z"/>
+</vector>