Add ability for route meta options to hide search bar

[rpocklin]

Description

Simply the ability to toggle on and off the search bar in the files app per-route, so you can customise the interface further depending on what you are showing as content (ie. a file preview or other viewer).

Motivation and Context

See description.

How Has This Been Tested?

Tested working locally, it's very simple change.

Screenshots (if appropriate):

With

Without

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

[kulmann]

@rpocklin thank you for this PR, especially for including tests! There have been changes to master in the meantime, could you rebase this PR and update the test snapshot again? Happy to merge it then. :-)

[rpocklin]

@rpocklin thank you for this PR, especially for including tests! There have been changes to master in the meantime, could you rebase this PR and update the test snapshot again? Happy to merge it then. :-)

@kulmann done :) Really like the way unit testing has been implemented btw.

[kulmann]

Thanks! 💪 I restarted CI, because it seems like the failure was random (there are a few unstable scenarios right now, sorry for that). Will hit merge as soon as CI is green.