Add option to view raw messages(without prettify)

[yeikel]

Issue submitter TODO list

• I've searched for an already existing issues here
• I'm running a supported version of the application which is listed here and the feature is not present there

Is your proposal related to a problem?

While debugging a message stream, I noticed that the Kafka messages had extra new lines on them when my intention was to have them as a single line. Debugging this problem with the UI is not possible because the UI prettifies the messages

Describe the feature you're interested in

Enhance the message view to add an option to disable pretty view and show the message as it is stored in Kafka

Describe alternatives you've considered

1. Look at the http traffic from the web inspector
2. Use other tools

Version you're running

5a40117