fix(hardtime-nvim): call enable() explicitly, remove redundant keys

[slowsage]

📑 Description

hardtime hooks to BufEnter to defer enabling when setup is called with the plugin enabled. On occasion, User AstroFile gets called after BufEnter.

This makes the plugin wait for a BufEnter that never happens. This PR calls enable() and setup() explicitly with the opts.

ℹ Additional Information

This PR also removes redundant keys that are present in the plugin already.

[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.

[slowsage]

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.

Note on the last checkbox. I reused opts (after removing redundant keys) but I have to call config to call setup. I left the opts variable as is as opposed to making opts a function since we need an opts variable anyway for the remaining options.

[Uzaaft]

Sorry for the delay, I’ll be merging this within the next 12h.