Fix flex layout for repo list icons (go-gitea#21896) (go-gitea#21920)

Backport go-gitea#21896

go-gitea#20241 Added a tooltip, which does not satisfy the flex layout, and the
icons are not aligned

Signed-off-by: Xinyu Zhou <i@sourcehut.net>

Author: Xinyu Zhou

templates/explore/repo_list.tmpl

@@ -32,9 +32,9 @@
 							{{end}}
 						{{end}}
 						{{if .IsFork}}
-							<span class="tooltip" data-content="{{$.locale.Tr "repo.fork"}}" data-position="bottom center">{{svg "octicon-repo-forked"}}</span>
+							<span class="tooltip df" data-content="{{$.locale.Tr "repo.fork"}}" data-position="bottom center">{{svg "octicon-repo-forked"}}</span>
 						{{else if .IsMirror}}
-							<span class="tooltip" data-content="{{$.locale.Tr "mirror"}}" data-position="bottom center">{{svg "octicon-mirror"}}</span>
+							<span class="tooltip df" data-content="{{$.locale.Tr "mirror"}}" data-position="bottom center">{{svg "octicon-mirror"}}</span>
 						{{end}}
 					</div>
 				</div>