feat: Add descriptions for each panel in CollectionSettings

[lizziemac]

Description

I've added descriptions to each of the panels in CollectionSettings for better user education. Furthermore, I've also made the UI more consistent across the panels. You'll notice in the provided video that the location of the description for each tab are now all on the same line, giving a smoother feeling to transitions.

Resolves #2030

Demo

https://github.com/usebruno/bruno/assets/18120837/7ec1286e-6d0b-4010-98d1-4c73dc70e54f

Contribution Checklist:

• [x] The pull request only addresses one issue or adds one feature.
• [x] The pull request does not introduce any breaking changes
• [x] I have added screenshots or gifs to help explain the change if applicable.
• [x] I have read the contribution guidelines.
• [x] Create an issue and link to the pull request.

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