Fix Single/Long Click Notification Options

Use the current contentIntent from directly the notification as it
might be changed dynamically.

Also, don’t show an error toast if the intent is null since the
notification might not need to send any intent.
Fix duplicated split bars
Add method to start apps directly snapped to sides

Developers can now start apps automatically snapped by using this in
addition to the halo flag

intent.putExtra(“com.zst.xposed.halo.floatingwindow.EXTRA_SNAP_SIDE",
side);

where *side* is the place on the screen to snap according to
AeroSnap.java,

LEFT: 1
TOP: 2
RIGHT: 3
BOTTOM: 4