Roadmap settings - Turn off progress tracking

What does this MR do and why?

Introduces the ability to turn off Progress tracking setting in sidebar.

This setting is not currently persisted in user preferences, only the URL param allows to persist it at this stage.

Behind :roadmap_settings feature flag.

Follow up from !79593 (merged)

Docs update: !80254 (merged)

Screenshots or screen recordings

OFF	ON

How to set up and validate locally

• Turn on feature flag :roadmap_settings
• Visit a non empty roadmap
• Click on Settings in the top right corner
• A drawer with the Roadmap settings title shows up
• Test Progress tracking toggle and radio buttons
• URL gets updated when changing options and epics progress bars are updated.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #349739 (closed)