fix for active llm provider in settings

[martyna-mindsdb]

Description

when providing an API key during onboarding/startup, then the active provider is not visible as active in the Settings tab -- this PR fixes it

how to test:

• remove local .anton dir
• start new anton instance and provide an api key during onboarding
• go to settings and check if there is one provider with a green circle next to it, indicating the active provider

Fixes #issue_number

Screenshots

Type of change

Please delete options that are not relevant.

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ⚡ New feature (non-breaking change which adds functionality)
• 🚨 Hotfix (non-breaking change which fixes an issue)
• 📢 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📄 This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have checked my code and corrected any misspellings

[tino097]

one nitpick

[martyna-mindsdb]

@tino097
Can you please resolve the comment so I can merge it?