Merge pull request 'fix-475' (#607) from fix-473 into V20211101

Reviewed-on: https://git.openi.org.cn/OpenI/aiforge/pulls/607
Reviewed-by: lewis <747342561@qq.com>

routers/home.go

@@ -281,10 +281,10 @@ func ExploreDatasets(ctx *context.Context) {
 	}
 
 	pager := context.NewPagination(int(count), opts.PageSize, page, 5)
+	ctx.Data["Keyword"] = opts.Keyword
 	pager.SetDefaultParams(ctx)
 	ctx.Data["Page"] = pager
 
-	ctx.Data["Keyword"] = opts.Keyword
 	ctx.Data["Datasets"] = datasets
 	ctx.Data["Total"] = count
 	ctx.Data["PageIsDatasets"] = true