Added content description

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

@@ -113,7 +113,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:backgroundTint="?attr/colorActionBackground"
-        android:contentDescription="@string/title_decrypt"
+        android:contentDescription="@string/title_icalendar_calendar"
         android:tint="@color/action_foreground"
         android:tooltipText="@string/title_icalendar_accept"
         app:layout_constraintBottom_toBottomOf="@id/btnCalendarAccept"

app/src/main/res/values/strings.xml

@@ -924,6 +924,7 @@
     <string name="title_icalendar_accept">Accept</string>
     <string name="title_icalendar_decline">Decline</string>
     <string name="title_icalendar_maybe">Maybe</string>
+    <string name="title_icalendar_calendar">Calendar</string>
 
     <string name="title_try">Try FairEmail, an open source, privacy friendly email app for Android</string>