Add paging headers (#36521)

Adds support for paging in admin/hooks api endpoint

fixes: https://github.com/go-gitea/gitea/issues/36516

---------

Co-authored-by: techknowlogick <techknowlogick@gitea.com>
Co-authored-by: techknowlogick <matti@mdranta.net>

routers/api/v1/utils/hook.go

@@ -23,8 +23,9 @@ import (
 
 // ListOwnerHooks lists the webhooks of the provided owner
 func ListOwnerHooks(ctx *context.APIContext, owner *user_model.User) {
+	listOptions := GetListOptions(ctx)
 	opts := &webhook.ListWebhookOptions{
-		ListOptions: GetListOptions(ctx),
+		ListOptions: listOptions,
 		OwnerID:     owner.ID,
 	}
 
@@ -42,7 +43,7 @@ func ListOwnerHooks(ctx *context.APIContext, owner *user_model.User) {
 			return
 		}
 	}
-
+	ctx.SetLinkHeader(int(count), listOptions.PageSize)
 	ctx.SetTotalCountHeader(count)
 	ctx.JSON(http.StatusOK, apiHooks)
 }