Fix dependent issue searching when gitea is run in subpath (#5392)

public/js/index.js

@@ -2712,7 +2712,7 @@ function initIssueList() {
     $('.new-dependency-drop-list')
         .dropdown({
             apiSettings: {
-                url: suburl + '/api/v1/repos' + repolink + '/issues?q={query}',
+                url: suburl + '/api/v1/repos/' + repolink + '/issues?q={query}',
                 onResponse: function(response) {
                     var filteredResponse = {'success': true, 'results': []};
                     // Parse the response from the api to work with our dropdown

templates/repo/issue/view_content/sidebar.tmpl

@@ -338,7 +338,7 @@
 	</div>
 </div>
 {{if .CanCreateIssueDependencies}}
-	<input type="hidden" id="repolink" value="{{$.RepoLink}}">
+	<input type="hidden" id="repolink" value="{{$.RepoRelPath}}">
 	<!-- I know, there is probably a better way to do this -->
 	<input type="hidden" id="issueIndex" value="{{.Issue.Index}}"/>