Various fixes to pages or elements which were looking ugly on mobile. <details> <summary>Screenshots</summary> ![Bildschirmfoto vom 2023-06-17 20-38-41](https://github.com/go-gitea/gitea/assets/47871822/30b5d3ce-df3b-43eb-a4c2-c3790667fb9d) ![Bildschirmfoto vom 2023-06-17 20-39-27](https://github.com/go-gitea/gitea/assets/47871822/27c07b25-3602-4fb2-b34d-d5e875e054e9) ![Bildschirmfoto vom 2023-06-17 20-41-27](https://github.com/go-gitea/gitea/assets/47871822/dacdbb4e-e3dd-4b94-abf0-c68e3d64bd3b) ![Bildschirmfoto vom 2023-06-17 20-41-48](https://github.com/go-gitea/gitea/assets/47871822/72432c35-7c4a-4c7f-a767-3562f26a5c14) ![Bildschirmfoto vom 2023-06-17 20-42-37](https://github.com/go-gitea/gitea/assets/47871822/737c26ed-1910-4467-98ef-e8769bbbe6f0) ![Bildschirmfoto vom 2023-06-17 20-42-52](https://github.com/go-gitea/gitea/assets/47871822/1813b4bc-43c0-4912-8acb-5d799c090bf3) ![Bildschirmfoto vom 2023-06-17 20-43-06](https://github.com/go-gitea/gitea/assets/47871822/136466e8-34e5-419d-97ec-5202ff819fd2) ![Bildschirmfoto vom 2023-06-17 20-43-42](https://github.com/go-gitea/gitea/assets/47871822/59270bb2-d661-4a84-8504-3e50f771f767) ![Bildschirmfoto vom 2023-06-17 20-44-44](https://github.com/go-gitea/gitea/assets/47871822/494e274d-3771-4141-9419-0a4bbd8b7f64) </details> Co-authored by @silverwind --------- Co-authored-by: silverwind <me@silverwind.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="https://github.com/go-gitea/gitea/assets/115237/8d89786a-01ab-40f8-ae5a-e17f40e35084"> <img width="1249" alt="image" src="https://github.com/go-gitea/gitea/assets/115237/83651e6d-3c27-46ff-b8bd-ff344d70e949"> --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com> Co-authored-by: Giteabot <teabot@gitea.io>
Reorganize various CSS files for clarity, group together by subdirectory in `index.css`. This reorders some of the rules, but I don't think it should introduce any issues because of that.