proper quote coloring in dark mode

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

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

@@ -45,6 +45,7 @@
         android:layout_marginEnd="8dp"
         android:layout_toEndOf="@id/quoteColoredView"
         android:ellipsize="end"
+        android:textColor="@color/textColorMaxContrast"
         android:textSize="12sp"
         tools:text="Jane Doe" />
 

app/src/main/res/values-night/colors.xml

@@ -52,7 +52,6 @@
     <color name="controller_chat_separator">#484848</color>
 
     <!-- Chat window incoming message text & informational -->
-    <color name="nc_grey">@android:color/holo_purple</color>
     <color name="bg_bottom_sheet">#121212</color>
     <color name="bg_message_list_incoming_bubble">#484848</color>
     <color name="bg_message_list_incoming_bubble_deleted">#66484848</color>