Added favicon info button

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

@@ -127,6 +127,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
     private TextView tvFaviconsHint;
     private SwitchCompat swFaviconsPartial;
     private SwitchCompat swFaviconsManifest;
+    private ImageButton ibFavicons;
     private SwitchCompat swDdg;
     private TextView tvDdgPrivacy;
     private SwitchCompat swFaviconsDmarc;
@@ -309,6 +310,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
         tvFaviconsHint = view.findViewById(R.id.tvFaviconsHint);
         swFaviconsPartial = view.findViewById(R.id.swFaviconsPartial);
         swFaviconsManifest = view.findViewById(R.id.swFaviconsManifest);
+        ibFavicons = view.findViewById(R.id.ibFavicons);
         swDdg = view.findViewById(R.id.swDdg);
         tvDdgPrivacy = view.findViewById(R.id.tvDdgPrivacy);
         swFaviconsDmarc = view.findViewById(R.id.swFaviconsDmarc);
@@ -922,6 +924,13 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
             }
         });
 
+        ibFavicons.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Helper.viewFAQ(view.getContext(), 154);
+            }
+        });
+
         swDdg.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {

app/src/main/res/layout/fragment_options_display.xml

@@ -1142,6 +1142,19 @@
                     app:layout_constraintTop_toBottomOf="@id/swFaviconsPartial"
                     app:switchPadding="12dp" />
 
+                <ImageButton
+                    android:id="@+id/ibFavicons"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginStart="12dp"
+                    android:layout_marginTop="6dp"
+                    android:contentDescription="@string/title_info"
+                    android:tag="nosuggest"
+                    android:tooltipText="@string/title_info"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@+id/swFaviconsManifest"
+                    app:srcCompat="@drawable/twotone_info_24" />
+
                 <androidx.appcompat.widget.SwitchCompat
                     android:id="@+id/swDdg"
                     android:layout_width="0dp"
@@ -1151,7 +1164,7 @@
                     android:text="@string/title_advanced_ddg"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/swFaviconsManifest"
+                    app:layout_constraintTop_toBottomOf="@id/ibFavicons"
                     app:switchPadding="12dp" />
 
                 <TextView