refactor(web): renames PendingTokenization as TokenizationPath, adds doc-comments 🚂#15095

jahorton wants to merge 2 commits intorefactor/web/transform-tokenization-subset-idskeymanapp/keyman:refactor/web/transform-tokenization-subset-idsfrom

refactor/web/rename-and-doc-pending-tokenizationkeymanapp/keyman:refactor/web/rename-and-doc-pending-tokenizationCopy head branch name to clipboard