Remove fomantic list module (#30281)

Likely still some unnecessary CSS but any combinations with the `ui
list` classes are covered. There was only on instance of `horizontal
list` which I removed. It was this part of the commit page:

<img width="396" alt="image"
src="c49ec4f5-93c3-41d6-a907-cdbedf8abc44">

(cherry picked from commit 649aada3664f5adccdaecc7dd24b8252ae070220)

templates/repo/commit_page.tmpl

@@ -164,9 +164,9 @@
 						{{end}}
 					{{end}}
 				</div>
-				<div class="ui horizontal list tw-flex tw-items-center">
+				<div class="tw-flex tw-items-center">
 					{{if .Parents}}
-						<div class="item">
+						<div>
 							<span>{{ctx.Locale.Tr "repo.diff.parent"}}</span>
 							{{range .Parents}}
 								{{if $.PageIsWiki}}

templates/user/settings/repos.tmpl

@@ -6,7 +6,7 @@
 		<div class="ui attached segment">
 			{{if or .allowAdopt .allowDelete}}
 				{{if .Dirs}}
-					<div class="ui middle aligned divided list">
+					<div class="ui list">
 						{{range $dirI, $dir := .Dirs}}
 							{{$repo := index $.ReposMap $dir}}
 							<div class="item {{if not $repo}}tw-py-1{{end}}">{{/* if not repo, then there are "adapt" buttons, so the padding shouldn't be that default large*/}}