Some missing suggestions & Other issues

## `somewere` should suggest `somewhere` as a correction
- context: `If each run took just a minute (in reality, it was about 2.5 minutes), it would still take several hours (somewere between 6 and 14h). `
- linted as typo, but only suggests `some were` as fix

## `vibecoding`, `vibecoded` incorrectly (imo) flagged
I think it should just be accepted. `vibe-coding` and `vibe coding` are both more annoying to read imo. Feel free to dismiss this if you disagree.

## `reproducibility` incorrectly flagged
- context: `Hopefully, the results are equal, or at least very similar, so we don't lose too many points for reproducibility and can still get a good grade.`
- flagged as spelling, suggests `reproducible`

## `how` incorectly flagged, suggests adding `to`
- context: `He is a guest in this country and doesn't really know how anything works here`
- flags how, suggests: `Insert to after how (e.g., how to clone).`

## Platform
`harper.js`.
https://kraxen72.github.io/local-harper/ using harper 1.12.0.
source code: https://github.com/KraXen72/local-harper (self-promo :P)

Reproduce the four spelling and grammar examples in harper.js with Harper 1.12.0, then trace how each word is diagnosed and suggested in the Harper source. Done means `somewere` gets the intended correction, `vibecoding` and `vibecoded` are accepted, and `reproducibility` and `how` are no longer incorrectly flagged.

Written by the indexing model from the issue text.