Added entries recycler item divider, further fixes to the UI

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

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:left="8dp"
+        android:right="8dp">
+        <shape android:shape="rectangle">
+            <size
+                android:width="1dp"
+                android:height="0.5dp" />
+            <solid android:color="@color/shuttle_gray" />
+        </shape>
+    </item>
+</layer-list>

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

@@ -21,7 +21,7 @@
     android:shape="rectangle">
     <gradient
         android:angle="270"
-        android:endColor="@color/themeButton"
+        android:endColor="@color/themeDark"
         android:startColor="@color/backgroundDark"
         android:type="linear" />
 </shape>