fix: settings billing issues for selfhosted

[McPizza0]

What does this PR do?

Don't show billing related stuff if billing is not available

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Chore (refactoring code, technical debt, workflow improvements)
• Enhancement (small improvements)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist

Required

• Read Contributing Guide
• Self-reviewed my own code
• Tested my code in a local environment
• Commented on my code in hard-to-understand areas
• Checked for warnings, there are none
• Removed all console.logs
• Merged the latest changes from main onto my branch with git pull origin main
• My changes don't cause any responsiveness issues

Appreciated

• If a UI change was made: Added a screen recording or screenshots to this PR
• Updated the UnInbox Docs if changes were necessary

[McPizza0]

• fix: settings billing issues for selfhosted #584 👈
• feat-spaces #582 : 2 other dependent PRs (#683 , #686 )
• main

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[BlankParticle]

@McPizza0, I have updated the PR, you might want to take a look