1. Add `<overflow-menu>` web component
2. Rename `<gitea-origin-url>` to `<origin-url>` and make filenames
match.
<img width="439" alt="image"
src="2fbe4ca4-110b-4ad2-8e17-c1e116ccbd74">
<img width="444" alt="Screenshot 2024-03-02 at 21 36 52"
src="aa8f786e-dc8c-4030-b12d-7cfb74bdfd6e">
<img width="537" alt="Screenshot 2024-03-03 at 03 05 06"
src="fddd50aa-adf1-4b4b-bd7f-caf30c7b2245">


TODO:
- [x] Check if removal of `requestAnimationFrame` is possible to avoid
flash of content. Likely needs a `MutationObserver`.
- [x] Hide tippy when button is removed from DOM.
- [x] ~~Implement right-aligned items
(https://github.com/go-gitea/gitea/pull/28976)~~. Not going to do it.
- [x] Clean up CSS so base element has no background and add background
via tailwind instead.
- [x] Use it for org and user page.
---------
Co-authored-by: Giteabot <teabot@gitea.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
(cherry picked from commit 256a1eeb9a67b18c62a10f5909b584b7b220848a)
Conflicts:
options/locale/locale_en-US.ini
templates/package/content/cargo.tmpl
templates/package/content/cran.tmpl
templates/package/content/debian.tmpl
templates/package/content/maven.tmpl
Alternative to: https://github.com/go-gitea/gitea/pull/29698
Fixes: https://github.com/go-gitea/gitea/issues/29034
<img width="278" alt="image"
src="12ecd967-2723-410d-8a28-a1b0f41b7bba">
It also fixes a secondary issue that we were showing timestamp tooltips
over date, which makes no sense, so these are now gone as well:
<img width="284" alt="image"
src="a70432f3-97b6-41e6-b202-b53b76924a66">
(cherry picked from commit 857243bed7f9dccdc597c2941df41e821781cb0f)
I think it's better if the primary actions have primary color instead of
green which fits better into the overall single-color UI design. This PR
currently replaces every green button with primary:
<img width="141" alt="Screenshot 2023-09-16 at 14 07 59"
src="843c1e50-4fb2-4ec6-84ba-0efb9472dcbe">
<img width="161" alt="Screenshot 2023-09-16 at 14 07 51"
src="9442195a-a3b2-4a42-b262-8377d6f5c0d1">
Modal actions now use uncolored/primary instead of previous green/red
colors. I also removed the box-shadow on all basic buttons:
<img width="259" alt="Screenshot 2023-09-16 at 14 16 39"
src="5beea529-127a-44b0-8d4c-afa7b034a490">
<img width="261" alt="Screenshot 2023-09-16 at 14 17 42"
src="4757f7b2-4d46-49bc-a797-38bb28437b88">
The change currently includes the "Merge PR" button, for which we might
want to make an exception to match the icon color there:
<img width="442" alt="Screenshot 2023-09-16 at 14 33 53"
src="993ac1a5-c94d-4895-b76c-0d872181a70b">
Replace #26850
Major changes:
1. Remove all `has` selectors, it is still not supported by firefox.
Actually there could be some more general and clearer approaches
2. Remove `two-toggle-buttons`, the `.ui.buttons` just works well
3. Rewrite the `.ui.buttons` border styles, see the screenshots
4. Remove the "fine-tuning" paddings from the the flex children, they
could layout themselves well.




Fix#26617
1. Separate the "flex-list" examples into a dedicated template, and add some more examples
2. Use `flex-basis` instead of `flex-shrink` for `flex-item-trailing`, to avoid wrapping the texts too aggressively
3. Some `flex-wrap: wrap;` are removed
This PR introduces a new UI element type for Gitea called `flex-item`.
It consists of a horizontal card with a leading, main and trailing part:

The idea behind it is that in Gitea UI, we have many cases where we use
this kind of layout, but it is achieved in many different ways:
- grid layout
- `.ui.list` with additional hacky flexbox
- `.ui.key.list` - looks to me like a style set originally created for
ssh/gpg key list, was used in many other places
- `.issue.list` - created for issue cards, used in many other places
- ...
This new style is based on `.issue.list`, specifically the refactoring
of it done in #25750.
In this PR, the new element is introduced and lots of templates are
being refactored to use that style. This allows to remove a lot of
page-specific css, makes many of the elements responsive or simply
provides a cleaner/better-looking way to present information.
A devtest section with the new style is also available.
<details>
<summary>Screenshots (left: before, right: after)</summary>



















</details>
---------
Co-authored-by: Giteabot <teabot@gitea.io>
- Various corrections to button styles, especially secondary
- Remove focus highlight, it's annoying when it stays on button after
press
- Clearly define ghost and link buttons with demos in devtest
- Remove black, grey and tertiary buttons, they should not be used
- Make `arc-green` slightly darker
<img width="1226" alt="image"
src="8d89786a-01ab-40f8-ae5a-e17f40e35084">
<img width="1249" alt="image"
src="83651e6d-3c27-46ff-b8bd-ff344d70e949">
---------
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>