feat(ui): add vertical brightness fills, dark mode, and websocket toggle

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

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/rootLayout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
@@ -7,6 +8,7 @@
     android:padding="16dp">
 
     <TextView
+        android:id="@+id/tvSelectionTitle"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="@string/btn_entity_selection"
@@ -16,6 +18,7 @@
         android:textColor="@color/ha_black" />
 
     <View
+        android:id="@+id/vBorderTitle"
         android:layout_width="match_parent"
         android:layout_height="2dp"
         android:background="@color/ha_black"
@@ -26,20 +29,27 @@
         android:id="@+id/etSearch"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:hint="Szukaj encji..."
-        android:inputType="text"
+        android:background="@null"
+        android:padding="8dp"
+        android:hint="Szukaj / Search..."
         android:typeface="monospace"
-        android:textSize="14sp"
-        android:drawableLeft="@android:drawable/ic_menu_search" />
+        android:textSize="14sp" />
+
+    <View
+        android:id="@+id/vBorderSearch"
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="@color/ha_black"
+        android:layout_marginBottom="16dp" />
 
     <ListView
         android:id="@+id/lvEntities"
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:layout_weight="1"
-        android:layout_marginTop="8dp"
         android:divider="@color/ha_black"
-        android:dividerHeight="1dp" />
+        android:dividerHeight="1dp"
+        android:listSelector="@android:color/transparent" />
 
     <FrameLayout
         android:layout_width="match_parent"