[Bugfix] make default remove glob match dotfiles

[reekystive]

What’s Changed

• Default option remove is changed from '.' to '**/{,.}*'.
• The new glob pattern matches ordinary files and dotfiles, guaranteeing a truly clean working directory before publishing.

Why This Matters

1. Glob '.' (or *, or **/*) ignores dotfiles – The old pattern skipped hidden files such as .gitignore, .nojekyll, or any project-specific dotfile, leaving them behind between deploys.
2. First-time deploy contamination – When gh-pages checks out a brand-new branch from the current branch, existing dotfiles are copied over, polluting the freshly created branch.

Impact

• Users with custom remove settings are unaffected.
• Users who relied on the old “keep dotfiles” behavior (expected to be rare) will now see those files removed; they can keep the old behavior by explicitly setting remove.

Future Work

• Consider creating the gh-pages branch from an empty tree during the very first deploy to avoid copying unrelated files at all—this can be explored in a separate PR.

References

• Shell globbing cheat sheet – https://github.com/micromatch/micromatch#matching-features