Migrate image loading from Picasso to Coil (TeamNewPipe#11201)

* Load notification icons using Coil

* Migrate to Coil from Picasso

* Clean up Picasso leftovers

* Enable RGB-565 for low-end devices

* Added Coil helper method

* Add annotation

* Simplify newImageLoader implementation

* Use Coil's default disk and memory cache config

* Enable crossfade animation

* Correct method name

* Fix thumbnail not being displayed in media notification

app/src/main/java/org/schabi/newpipe/util/external_communication/ShareUtils.java

@@ -25,6 +25,7 @@
 import org.schabi.newpipe.BuildConfig;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.Image;
+import org.schabi.newpipe.util.image.CoilHelper;
 import org.schabi.newpipe.util.image.ImageStrategy;
 
 import java.nio.file.Files;