Night mode color contrast fix (commons-app#5307)

* Fixes dark mode color contrast fix

* fixes text color contrast on app-level dark mode settings

Author: srishti-R

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

@@ -79,5 +79,6 @@
     <color name="card_light_grey">#EDEDED</color>
 
     <color name="wikimedia_green">#339966</color>
+    <color name="primary_color_night">#1e8cab</color>
 
 </resources>

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

@@ -10,11 +10,11 @@
         <item name="achievementBackground">@color/achievement_background_dark</item>
         <item name="drawerHeaderBackground">@color/drawerHeader_background_dark</item>
         <item name="tutorialBackground">@color/tutorial_background_dark</item>
-        <item name="icon">@color/primaryTextColor</item>
-        <item name="colorPrimary">@color/primaryColor</item>
-        <item name="colorPrimaryDark">@color/primaryDarkColor</item>
-        <item name="colorAccent">@color/primaryColor</item>
-        <item name="colorButtonNormal">@color/primaryColor</item>
+        <item name="icon">@color/primary_color_night</item>
+        <item name="colorPrimary">@color/primary_color_night</item>
+        <item name="colorPrimaryDark">@color/primary_color_night</item>
+        <item name="colorAccent">@color/primary_color_night</item>
+        <item name="colorButtonNormal">@color/primary_color_night</item>
         <item name="bookmarkButtonColor">@color/button_blue_dark</item>
         <item name="rowButtonColor">@color/button_blue_dark</item>
         <item name="reviewHeading">@color/white</item>