Show premium feature pages - even when feature is not available

[Pezmc]

Description

Draft as pending UX/UI polish from @joepavitt and test coverage.

Related Issue(s)

#2103

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on flowforge/helm to update ConfigMap Template
  • Issue/PR raised on flowforge/CloudProject to update values for Staging/Production

Labels

• Backport needed? -> add the backport label
• Includes a DB migration? -> add the area:migration label

[joepavitt]

@MarianRaphael any thoughts on where we'd like the "upgrade" text to link to? This will only show in self-hosted FF, and upgrading to Premium, if I'm not mistaken, can only be done via contacting us directly right now?

[MarianRaphael]

I would provide a link to the documentation: https://flowforge.com/docs/upgrade/open-source-to-premium/. Additionally, on the documentation page, I would note that customers need to contact us to purchase a premium licence.

[joepavitt]

Ended up changing the bg-color to blue-100 just to make it stand out a little more, as found it was washed into the b/g with the grey.

Have also added the "upgrade" link.

[joepavitt]

Have made some minor adjustments (banner colour and fixing E2E tests), all good to go