Remove scrollbar on Labels Filter bar when not needed

[gycgabriel]

Describe the bug
The labels filter bar shows a scrollbar even when there is nothing to scroll below.
I've tried resizing the html components surrounding it, but the scrollbar is displayed even when set to auto.

Expected behavior
The scrollbar should only be displayed if there are so many labels selected to be filtered that it overflows.

Screenshots

[seetohjinwei]

Hi! I think this issue might have been fixed already, as I cannot reproduce it.

However, I noticed that

• a repository with no issues still displays a fixed height container
• a repository with many issues is scrollable, but there is no scroll bar
  • this seems to be intentional based on the CSS, but I feel like this might lead to the user being unaware that the container is scrollable

Currently

Repository with many labels:

Repository with no labels:

Proposed Change

• Change height: 400px to max-height: 400px
• Allow the scrollbar to be visible when there is content to be scrolled

[Eclipse-Dominator]

Sounds good, lets make this in a separate issue and close this one

[NereusWB922]

Issue solved by #163.