Tracking sheet and search adjustments (#5427)

* Tracking sheet and search visual adjustments

* Remove track item divider

* Add start margin to "add tracking" button

* Fix track search dialog crash when no item chosen

* Show "remove" action only when track item is previously set

* Remove placeholder for total chapters

* Cleanups

* Add track search error/empty result message

* Make track search dialog fullscreen

* Use AutofitRecyclerView for track search dialog

* Fix text input overlapping

* Run track search from IME action instead

* Remove deprecated method

* Reformat

* Set track search error message on the placeholder

* Use payload to notify track search item change

* Fix track search action icon tint color

(cherry picked from commit cb71d44024)

# Conflicts:
#	app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchAdapter.kt
#	app/src/main/res/values/styles.xml

app/src/main/res/menu/track_search.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/remove"
+        android:icon="@drawable/ic_delete_24dp"
+        android:title="@string/action_remove"
+        android:visible="false"
+        app:iconTint="?attr/colorOnToolbar"
+        app:showAsAction="ifRoom" />
+
+    <item
+        android:id="@+id/done"
+        android:enabled="false"
+        android:icon="@drawable/ic_check_24dp"
+        android:title="@android:string/ok"
+        app:iconTint="?attr/colorOnToolbar"
+        app:showAsAction="ifRoom" />
+</menu>