* Update website folder to indicate deprecation
Adds an alert banner to the top of all MDX files within `/website` to
indicate deprecation
* Update website README
* moves resource-table.mdx to internal/website/permstable
* updates location of generated resource-table.mdx file to internal/website/permstable/
This change facilitates the implementation of the web-unified-docs content migration,
which will need to source generated content like this table from outside the website
folder after the content migration.