Load and draw Recent/Running tasks that aren't in Hotseat

- Re-support GroupTask as a tag on TaskbarView BubbleTextViews
- Can tap to launch (startActivityFromRecents) or drag and drop
- Move divider when enable_recents_in_taskbar is true

Behavior:
- While in Desktop mode, all open tasks show up in TaskbarView,
  either in the Hotseat section or the Running apps section
  past the divider. Each one also has a running line indicator.
- While in Fullscreen mode, up to 2 Recent apps that are not
  part of Hotseat will be added to the right of the divider.

Flag: com.android.launcher3.enable_recents_in_taskbar
Test: TaskbarRecentAppsControllerTest
Bug: 315354060
Change-Id: I2e2870cca434b51f276a701860edb32069109159

src/com/android/launcher3/BubbleTextView.java

@@ -430,10 +430,21 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
         setDownloadStateContentDescription(info, info.getProgressLevel());
     }
 
+    /**
+     * Directly set the icon and label.
+     */
+    @UiThread
+    public void applyIconAndLabel(Drawable icon, CharSequence label) {
+        applyCompoundDrawables(icon);
+        setText(label);
+        setContentDescription(label);
+    }
+
     /** Updates whether the app this view represents is currently running. */
     @UiThread
     public void updateRunningState(RunningAppState runningAppState) {
         mRunningAppState = runningAppState;
+        invalidate();
     }
 
     protected void setItemInfo(ItemInfoWithIcon itemInfo) {
@@ -1291,13 +1302,4 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
     public boolean canShowLongPressPopup() {
         return getTag() instanceof ItemInfo && ShortcutUtil.supportsShortcuts((ItemInfo) getTag());
     }
-
-    /** Returns the package name of the app this icon represents. */
-    public String getTargetPackageName() {
-        Object tag = getTag();
-        if (tag instanceof ItemInfo itemInfo) {
-            return itemInfo.getTargetPackage();
-        }
-        return null;
-    }
 }