This PR does various modifications on the issue list shared template:
- restructure layout to achieve better responsiveness
- fix various style issues
- restructure styles (better result with less code :)
- remove numerous `gt-*` patches and other unneeded classes -> use
existing css classes
<details>
<summary>Before:</summary>



</details>
<details>
<summary>After:</summary>



</details>
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Co-authored-by: silverwind <me@silverwind.io>