templates/repo: use correct Semantic UI icon styles to fix star and watch icons (#5218)

* Update font-awesome to 4.7.0

* Fix font-awesome styles overrided by semantic

* Revert back

* Revert back 2

* Just use right `semantic` icon styles

templates/repo/header.tmpl

@@ -17,7 +17,7 @@
 						<div class="ui right">
 							<div class="ui labeled button" tabindex="0">
 								<a class="ui basic button" href="{{$.RepoLink}}/action/{{if $.IsWatchingRepo}}un{{end}}watch?redirect_to={{$.Link}}">
-									<i class="icon fa-eye{{if not $.IsWatchingRepo}}-slash{{end}}"></i>{{if $.IsWatchingRepo}}{{$.i18n.Tr "repo.unwatch"}}{{else}}{{$.i18n.Tr "repo.watch"}}{{end}}
+									<i class="eye{{if not $.IsWatchingRepo}} slash outline{{end}} icon"></i>{{if $.IsWatchingRepo}}{{$.i18n.Tr "repo.unwatch"}}{{else}}{{$.i18n.Tr "repo.watch"}}{{end}}
 								</a>
 								<a class="ui basic label" href="{{.Link}}/watchers">
 									{{.NumWatches}}
@@ -25,7 +25,7 @@
 							</div>
 							<div class="ui labeled button" tabindex="0">
 								<a class="ui basic button" href="{{$.RepoLink}}/action/{{if $.IsStaringRepo}}un{{end}}star?redirect_to={{$.Link}}">
-									<i class="icon fa-star{{if not $.IsStaringRepo}}-o{{end}}"></i>{{if $.IsStaringRepo}}{{$.i18n.Tr "repo.unstar"}}{{else}}{{$.i18n.Tr "repo.star"}}{{end}}
+									<i class="star{{if not $.IsStaringRepo}} outline{{end}} icon"></i>{{if $.IsStaringRepo}}{{$.i18n.Tr "repo.unstar"}}{{else}}{{$.i18n.Tr "repo.star"}}{{end}}
 								</a>
 								<a class="ui basic label" href="{{.Link}}/stars">
 									{{.NumStars}}