Misc CSS fixes (#35888)

Fixes: https://github.com/go-gitea/gitea/issues/35913
Fixes: https://github.com/go-gitea/gitea/issues/35942

Contains a number of minor CSS fixes.

---------

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

templates/repo/home_sidebar_bottom.tmpl

@@ -6,8 +6,8 @@
 				<div class="flex-item-title">
 					<a class="item muted" href="{{.RepoLink}}/releases">
 						{{ctx.Locale.Tr "repo.releases"}}
-						<span class="ui small label">{{.NumReleases}}</span>
 					</a>
+					<span class="ui small label">{{.NumReleases}}</span>
 				</div>
 				<div class="flex-item">
 					<div class="flex-item-leading">