main
portico: Add user avatars directory.
portico: Update screenshots for "for/business", "for/open-source" pages.
corporate: Update for/education screenshots for canonical Elena.
portico: Update screenshots for "for/events" page.
portico: Update screenshots for "for/research" page.
upload: Resolve avatar upload content type in the callers.
eslint: Fix unicorn/no-optional-chaining-on-undeclared-variable.