Remove the LikeButton library (#363)

* Add functions to add and remove favorites from SharedItems

* Remove the LikeButton dependency

* Use the theme colors for the icon tint

app/build.gradle

@@ -130,8 +130,7 @@ dependencies {
     implementation 'com.burgstaller:okhttp-digest:2.5'
 
     // Material-ish things
-    implementation 'com.ashokvarma.android:bottom-navigation-bar:2.2.0'
-    implementation 'com.github.jd-alexander:LikeButton:0.2.3'
+    implementation 'com.ashokvarma.android:bottom-navigation-bar:2.1.0'
     implementation 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
 
     // glide