Update pinned services

[aktech]

Reference Issues or PRs

jhub-apps added the ability to pin services with custom thumbnail here: https://github.com/nebari-dev/jhub-apps/pull/632 Adding back conda-store as pinned as nothing is pinned by default except JupyterLab and Vscode

What does this implement/fix?

Put a x in the boxes that apply

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds a feature)
• [ ] Breaking change (fix or feature that would cause existing features not to work as expected)
• [ ] Documentation Update
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no API changes)
• [ ] Build related changes
• [ ] Other (please describe):

Documentation

• [ ] For new features or enhancements, a corresponding PR has been opened in the documentation repository (if applicable)
  • Link to docs PR:

Testing

• [ ] Did you test the pull request locally?
• [ ] Did you add new tests?

How to test this PR?

Any other comments?

[Adam-D-Lewis]

I believe https://github.com/nebari-dev/nebari/pull/3163 would supercede this