Content warnings should show at the top of a post

[CorruptComputer]

On longer posts it can lead to your entire screen just being empty. This isn't a great UX.

[sk22]

possible duplicate of #166, possible fix: master...sk22:mastodos:spoiler-height-independent

this would literally just take one changed line of code in TextStatusDisplayItem.java#L86

	spoilerOverlay.setVisibility(View.VISIBLE);
-	text.setVisibility(View.INVISIBLE);
+	text.setVisibility(View.GONE);
	itemView.setClickable(true);

[sk22]

also consider: posts like this:

the screenshot was taken with the single line code change in the comment above. if the hidden post was as tall as the post's content… well i wouldn't have fun scrolling down all the way

[waldyrious]

Instead of putting the text always on top (which would still produce the "blank screen" effect when scrolling down on long post), or changing the height of the post when hiding behind a spoiler tag (which would lead to sudden UI changes as a post is hidden/shown), perhaps a solution could be to use sticky positioning to keep the text in the center of the post height when that is visible on screen, and make it stick to the top or bottom of the screen when scrolling would move the center off-screen.