refactor: use user-token for historyDelete too

Previously, the user token was only used for the endpoint
to delete the user itself. This commit adds that token to
the history deletion as well.

Signed-off-by: Philip Molares <philip.molares@udo.edu>

lib/web/statusRouter.js

@@ -112,7 +112,8 @@ statusRouter.get('/config', function (req, res) {
     allowedUploadMimeTypes: config.allowedUploadMimeTypes,
     linkifyHeaderStyle: config.linkifyHeaderStyle,
     cookiePolicy: config.cookiePolicy,
-    enableUploads: config.enableUploads
+    enableUploads: config.enableUploads,
+    userToken: req.user ? req.user.deleteToken : ''
   }
   res.set({
     'Cache-Control': 'private', // only cache by client