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/org/member.go

@@ -20,11 +20,12 @@ import (
 
 // listMembers list an organization's members
 func listMembers(ctx *context.APIContext, isMember bool) {
+	listOptions := utils.GetListOptions(ctx)
 	opts := &organization.FindOrgMembersOpts{
 		Doer:         ctx.Doer,
 		IsDoerMember: isMember,
 		OrgID:        ctx.Org.Organization.ID,
-		ListOptions:  utils.GetListOptions(ctx),
+		ListOptions:  listOptions,
 	}
 
 	count, err := organization.CountOrgMembers(ctx, opts)
@@ -44,6 +45,7 @@ func listMembers(ctx *context.APIContext, isMember bool) {
 		apiMembers[i] = convert.ToUser(ctx, member, ctx.Doer)
 	}
 
+	ctx.SetLinkHeader(int(count), listOptions.PageSize)
 	ctx.SetTotalCountHeader(count)
 	ctx.JSON(http.StatusOK, apiMembers)
 }