Every other function there returning a RenderRequest has one, so might
as well.
Don't add it to check_and_remove_full_rows(), because it's only used
inside other functions returning a RenderRequest, when it's already
clear a render will happen.
This is how the menu looks like after this commit:
┌────┐
│Game│ Help
├────┴─────────────────────────────┐
│ New game F2 │
│ Toggle pause P │
├──────────────────────────────────┤
│ Quit Alt+F4 │
└──────────────────────────────────┘
Allows for pausing with either the `P` or `Escape` keys. In this commit
you can still rotate pieces when paused - which makes for an interesting
"stop-time" cheat mechanic, but probably isn't yet what we want.
This will make it easier to support both string types at the same time
while we convert code, and tracking down remaining uses.
One big exception is Value::to_string() in LibJS, where the name is
dictated by the ToString AO.
We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
