UI: Prevent LogQL and HTTP Query params injection in Netflow table filter

Introducing just a double-quote " character in the filters table would cause the table to visualize a 503 error message.

In addition, its possible to inject LogQL commands as well as HTTP query parameters from the Network Traffic table.

As a vulnerability example, try to e.g. select the `Src Pod` label in the table filter and then place one of the following lines in the input text (including the quotes):

"|json|DstAddr=ip("172.0.0.0/8")|~"
"&limit=1000&foo="bar