Added (partially) settings screen

Most importantly added design and functionality backing for these items

app/src/main/res/drawable/divider_l_50.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <size
+        android:width="@dimen/l_50"
+        android:height="@dimen/l_50" />
+    <solid android:color="@android:color/transparent" />
+</shape>