Add quick approve button on PR page (#35678)

This PR adds a quick approve button on PR page to allow reviewers to
approve all pending checks. Only users with write permission to the 
Actions unit can approve.

---------

Signed-off-by: Zettat123 <zettat123@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/web/web.go

@@ -1459,6 +1459,7 @@ func registerWebRoutes(m *web.Router) {
 		m.Post("/enable", reqRepoAdmin, actions.EnableWorkflowFile)
 		m.Post("/run", reqRepoActionsWriter, actions.Run)
 		m.Get("/workflow-dispatch-inputs", reqRepoActionsWriter, actions.WorkflowDispatchInputs)
+		m.Post("/approve-all-checks", reqRepoActionsWriter, actions.ApproveAllChecks)
 
 		m.Group("/runs/{run}", func() {
 			m.Combo("").