fix: issue tracker link redirection (#13504)

kudos to @zeripath
* in case there is a remote issue tracker configured, the git graph view
  PR and issue links now correctly point to the issue tracker location,
  whereas if literally pointing at 'pulls', you could have ended up back
  at the local instance after clicking the link (which, obviously haven't
  had the pull/issue)

Signed-off-by: wULLSnpAXbWZGYDYyhWTKKspEQoaYxXyhoisqHf <a_mirre@utb.cz>

templates/repo/graph/commits.tmpl

@@ -35,12 +35,12 @@
 							{{if eq $refGroup "pull"}}
 								{{if $.HidePRRefs}}
 									{{if (containGeneric $.SelectedBranches .Name) }}
-										<a class="ui labelled icon button basic tiny" href="{{$.RepoLink}}/pulls/{{.ShortName|PathEscape}}">
+										<a class="ui labelled icon button basic tiny" href="{{$.RepoLink}}/issues/{{.ShortName|PathEscape}}">
 											{{svg "octicon-git-pull-request" 16 "mr-2"}}#{{.ShortName}}
 										</a>
 									{{end}}
 								{{else}}
-									<a class="ui labelled icon button basic tiny" href="{{$.RepoLink}}/pulls/{{.ShortName|PathEscape}}">
+									<a class="ui labelled icon button basic tiny" href="{{$.RepoLink}}/issues/{{.ShortName|PathEscape}}">
 										{{svg "octicon-git-pull-request" 16 "mr-2"}}#{{.ShortName}}
 									</a>
 								{{end}}