Unicode rendering/CJK input issues

[ghost]

All wide characters get cut off in the top side

As you can see, all multibyte characters' tops get cut off, such as emojis or CJK characters. I don't think this is a font related issue, and this isn't related to #223 too, since that already got fixed.

Flags overlap with the country code

The country flag emojis somehow overlap with their country code, as shown in the screenshot, and the characters tend to mush together if written side by side.

CJK Input creates a secondary small window

This is not that big of an issue, since the input still works correctly. This happens because the input method is using GTK/Qt but st doesn't use any toolkit out there, so the input method basically emulates the multibyte input sequence with a small pre-window(as I like to call it) before the input actually gets registered. I'm pretty sure this problem won't go away unless an incredible amount of bloat is added, so I don't think it deserves a fix. However I'm leaving it up here so people can confirm the issue does exist and it's not only them that's having the issue.

[ghost]

Seems like the characters are not cut off when the font size is very small. Maybe dynamically increasing the height of a single line could be the solution to the first problem.

[askfiy]

Well, won't this problem be fixed? Is there a viable solution?

[LukeSmithxyz]

This is a library issue apart from this repo. Have fontconfig or st lessen the size of emojis to compensate.