keep "view as" format

[maidiries]

Version before support this. When you choose a format to show a key content, for example JSON, this format is saved. Then when you open a new key content, application remember last choose and show key content with JOSN format.

Current version don't remember last format.

To Reproduce
Steps to reproduce the behavior:

1. Open any key content
2. Click on 'View as:' and choose some format
3. Go to another key content
4. Format showed with 'Plain text'

Expected behavior
Remember last choose for 'View as' on key contents

Environment:

• OS & version: Windows 10
• Redis-Server version 2021.10.103

[uglide]

Fixed in 2022.0