Issue #3593440 by mably: Fix cspell and ESLint CI failures, switch docs to the Material theme (!1) · Merge requests · project / pdv

Add 'webforms' and 'WSOD' to the cspell project dictionary.
Exclude mkdocs.yml from cspell via _CSPELL_IGNORE_PATHS (documentation tooling vocabulary, not project prose), mirroring audit_trail.
Switch mkdocs to the Material theme with the project logo and favicon, and correct the nav indentation that ESLint flagged.

Issue #3593440 by mably: Fix cspell and ESLint CI failures, switch docs to the Material theme