feat: avoid crashing and log errors

[tarcisioe]

This avoids crashing rocks-config.nvim if a config file has an error. Right now, if any plugin configuration fails, everything that comes after it won't run. E.g.: Let's say I have an error on my lualine.nvim config. Then I don't even have my LSP configured to edit the file and fix it :(

Errors are logged in :checkhealth and the specific information about the error is added as advice:

[github-actions[bot]]

Review Checklist

Does this PR follow the Contribution Guidelines? Following is a partial checklist:

Proper conventional commit scoping:

• For example, fix(installer): some installer bugfix

• [ ] Pull request title has the appropriate conventional commit prefix.

If applicable:

• [ ] Tested
  • [ ] Tests have been added.
  • [ ] Tested manually (steps in PR description).
• [ ] Updated documentation.

[tarcisioe]

Changes made!