Use Pull Requests for Gitea migration

Author: delvh

templates/repo/migrate/gitea.tmpl

@@ -54,7 +54,7 @@
 							<label></label>
 							<div class="ui checkbox">
 								<input name="pull_requests" type="checkbox" {{if .pull_requests}} checked{{end}}>
-								<label>{{.i18n.Tr "repo.migrate_items_merge_requests" | Safe}}</label>
+								<label>{{.i18n.Tr "repo.migrate_items_pullrequests" | Safe}}</label>
 							</div>
 							<div class="ui checkbox">
 								<input name="releases" type="checkbox" {{if .releases}} checked{{end}}>