Support long projects name in Issue sidebar

[yp05327]

Description

I didn't check the others in sidebar. It is necessary to check all of them.

Gitea Version

latest

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

build

Database

None

[yardenshoham]

It looks like it only happens with strings that can't be split

[yp05327]

@yardenshoham

I'm not sure whether this string can be splitted.
It is tested in version e7ef94e

[wxiaoguang]

word-break, or overflow hidden