Redesigned widget (#225)

* Changed widget layout, added vibrant color support for button

* Added preview image. Show also albums name after artists name

* Updated also small widget with vibrant color support. Added preview images for small and big widgets

* Fixed wrong height

* Revert classic widget padding, update preview image

* Replaced dash with dot, changed background color, show the album name also on big widget.

* Updated preview images, switched to jpg

* Fixed dot instead of dash for small widget

* Changed ripple color for white background

* Dark ripple for big widget

* Standardize layout

* Fix image resizing

* Improve image resizing

* Fix for songs without album art

* Set centerCrop for albums art

* Card layout for small widget

* Updated preview images

* Fix incorrectly rounded corner

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

@@ -4,10 +4,10 @@
     <item>
         <shape>
             <padding
-                android:top="8dp"
-                android:right="8dp"
-                android:bottom="5dp"
-                android:left="8dp"/>
+                android:top="0dp"
+                android:right="0dp"
+                android:bottom="0dp"
+                android:left="0dp"/>
             <solid android:color="@android:color/transparent"/>
         </shape>
     </item>