This patch:
- Use `<button>` replace anchor link `<a>` in **_Delete/Restore
Branch_** button to avoid unexpected page jump before restore branch
actually done.
- Also replace right side buttons with `<button>` in branch list, let
some screen readers know they are buttons.
## Before
click restore branch -> restore triggered -> page refreshed, but branch
status not update -> manually refresh page
<details>
https://user-images.githubusercontent.com/76462613/197389108-5a0bd259-0455-40b2-92ac-4326900276f8.mp4
</details>
## After
waiting restore done -> page refresh -> branch status update
<details>
https://user-images.githubusercontent.com/76462613/197428683-616fcbd2-70f9-4572-bf76-e0b7f77b6dd7.mp4
</details>
Signed-off-by: baronbunny <its@baronbunny.cn>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
26f941fbda