enhance: add permalinks to pull request reviews (#38849) (#39036)

Backport #38849 by @silverwind

1. Make review threads linkable via `#pullrequestreview-<reviewID>`
2. Improve CSS so username and timestamp go colored on hover.
3. CSS cleanup, remove dead rules, nonexistant class name, make
`.suppressed` actually do what it says in the doc above.

<img width="351" height="84" alt="image"
src="https://github.com/user-attachments/assets/6ddf15d4-3d6e-4846-ab82-0ad0b19b372f"
/>

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

templates/shared/secrets/add_list.tmpl

@@ -34,7 +34,7 @@
 				</div>
 			</div>
 			<div class="item-trailing">
-				<span class="color-text-light-2">
+				<span>
 					{{ctx.Locale.Tr "settings.added_on" (DateUtils.AbsoluteShort .CreatedUnix)}}
 				</span>
 				<button class="btn interact-bg show-modal tw-p-2"

templates/shared/user/authorlink.tmpl

@@ -1 +1 @@
-<a class="muted tw-text-text tw-font-semibold"{{if gt .ID 0}} href="{{.HomeLink}}"{{end}}>{{.GetDisplayName}}</a>{{if .IsTypeBot}}&nbsp;<span class="ui basic label tw-p-1 tw-align-baseline">bot</span>{{end}}
+<a class="tw-font-semibold"{{if gt .ID 0}} href="{{.HomeLink}}"{{end}}>{{.GetDisplayName}}</a>{{if .IsTypeBot}}&nbsp;<span class="ui basic label tw-p-1 tw-align-baseline">bot</span>{{end}}

templates/shared/variables/variable_list.tmpl

@@ -33,7 +33,7 @@
 				</div>
 			</div>
 			<div class="item-trailing">
-				<span class="color-text-light-2">
+				<span>
 					{{ctx.Locale.Tr "settings.added_on" (DateUtils.AbsoluteShort .CreatedUnix)}}
 				</span>
 				<button class="btn interact-bg tw-p-2 show-modal"