Add more info to /.tokens endpoint

src/routes/router_utils.nim

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: AGPL-3.0-only
-import strutils, sequtils, uri, tables
+import strutils, sequtils, uri, tables, json
 from jester import Request, cookies
 
 import ../views/general
@@ -43,5 +43,5 @@ template getCursor*(req: Request): string =
 proc getNames*(name: string): seq[string] =
   name.strip(chars={'/'}).split(",").filterIt(it.len > 0)
 
-template respJson*(body: string) =
-  resp body, "application/json"
+template respJson*(node: JsonNode) =
+  resp $node, "application/json"