🚀 Cache lints

[twocaretcat]

Is This New?

• I have read all available documentation (ex. README.md, CONTRIBUTING.md, external docs site, etc.)
• I have searched for existing issues
• I'm willing to implement this myself (optional)

What?

Save lints (for spell/grammar checking) to local storage when rememberInputText is true to speed up page loads. Investigate whether there is any benefit to computing counts again when the page loads. Otherwise, skip this computation

Refer to the existing implementation for saving input text using persistent nanostores as this will be very similar.

Acceptance Criteria:

• Lints are serialized into an efficient format (if applicable)
• Lints are saved to local storage when $inputText changes and $rememberInputText is true
• Lints are saved to local storage when the value of $rememberInputText is changed to true
• Lints are saved to local storage when the value of $rememberInputText is changed to true
• Lints are restored on load

Why?

Restoring lints from local storage should be noticeably faster than computing them again for large input strings, improving UX.

Alternatives

No response