Close #24302
Part of #24229, Follows #24246
This PR focused on CSS style fine-tune, main changes:
1. Give `.ui.ui.ui.container` a width of `1280px` with a max-width of
`calc(100vw - 64px)`, so the main contents looks better on large
devices.
2. Share styles for table elements in all levels settings pages to fix
overflow of runners table on mobile and for consistency (The headers on
mobile can be further improved, but haven't found a proper way yet).
3. Use [stackable
grid](https://fomantic-ui.com/collections/grid.html#stackable) and
[device column width](https://fomantic-ui.com/examples/responsive.html)
for responsiveness for some pages (repo/org collaborators settings
pages, org teams related page)
4. Fixed #24302 by sharing label related CSS in reporg.css
5. Fine tune repo tags settings page
---------
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
f1a4330306