Disable Fomantic's CSS tooltips (#16974)

CSS-only tooltips suffer various issues with positioning and there was
only one single instance of them in the templates. Replace that instance
with a regular popup and exclude these `data-tooltip` styles from the
Fomantic build.

Author: silverwind

templates/repo/settings/options.tmpl

@@ -170,7 +170,7 @@
 							{{$address := MirrorRemoteAddress .}}
 							<td>{{$address.Address}}</td>
 							<td>{{$.i18n.Tr "repo.settings.mirror_settings.direction.push"}}</td>
-							<td>{{if .LastUpdateUnix}}{{.LastUpdateUnix.AsTime}}{{else}}{{$.i18n.Tr "never"}}{{end}} {{if .LastError}}<div class="ui red label" data-tooltip="{{.LastError}}">{{$.i18n.Tr "error"}}</div>{{end}}</td>
+							<td>{{if .LastUpdateUnix}}{{.LastUpdateUnix.AsTime}}{{else}}{{$.i18n.Tr "never"}}{{end}} {{if .LastError}}<div class="ui red label poping up" data-content="{{.LastError}}">{{$.i18n.Tr "error"}}</div>{{end}}</td>
 							<td class="right aligned">
 								<form method="post" style="display: inline-block">
 									{{$.CsrfTokenHtml}}

web_src/fomantic/_site/globals/site.variables

@@ -5,3 +5,4 @@
 @bold: 500;
 @useCustomScrollbars: false;
 @disabledOpacity: var(--opacity-disabled);
+@variationPopupTooltip: false;