fix(rainbow-delimiters-nvim): event loading

[jay-babu]

addresses: #672

currently rainbow-delimiters do not load properly unless :e is run in the document. using VeryLazy event, it loads properly. I don't fully understand this, but I believe loading the file first then having rainbow-delimiters load causes it to not color everything properly. HiPhish/rainbow-delimiters.nvim#31 (comment). the :e fix seems to be known by the author

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ℹ Additional Information

[github-actions]

Review Checklist

Does this PR follow the [Contribution Guidelines](development guidelines)? Following is a partial checklist:

Proper conventional commit scoping:

• If you are adding a new plugin, the scope would be the name of the category it is being added into. ex. feat(utility): added noice.nvim plugin

• If you are modifying a pre-existing plugin or pack, the scope would be the name of the plugin folder. ex. fix(noice-nvim): fix LSP handler error

• Pull request title has the appropriate conventional commit type and scope where the scope is the name of the pre-existing directory in the project as described above

• README is properly formatted and uses fenced in links with <url> unless they are inside a [title](url)

• Proper usage of opts table rather than setting things up with the config function.