docs: update faq with new questions, fix menus

[rfay]

The Issue

Noticed FAQs that people ask... about code and DDEV, about where the databases live.

How This PR Solves The Issue

• Minor change to make mkdocs-serve - delete the container on exit
• Fix menus on hosting provider integration. They've been messed up forever
• Add new FAQs

Manual Testing Instructions

Built docs at https://ddev--5924.org.readthedocs.build/en/5924/users/usage/faq/

• Review "hosting provider integration" and related menus at
• Review FAQ

Notes

For the mkdocs-not-installed case make mkdocs-serve provides a docker-based mkdocs setup thanks to @tyler36

The polinux/mkdocs docker image has moved along, and now has arm64 version (not pushed properly), but the current image does not seem to work right on either arm64 or amd64.

I experimented with this, though, to handle arm64, but neither the amd64 nor arm64 images worked right with 1.5.2, so I gave up:

mkdocs-serve:
	$(shell if command -v mkdocsx >/dev/null ; then \
			mkdocs serve; \
		else \
			TAG=1.5.2; \
			set -x; \
			if [ $(BUILD_ARCH) = 'arm64' ]; then TAG="arm64v8-$${TAG}"; fi; \
			docker run -it --rm -v "${PWD}:/docs" -p 8000:8000 -e "ADD_MODULES=mkdocs-material mkdocs-redirects mkdocs-minify-plugin mdx_truly_sane_lists mkdocs-git-revision-date-localized-plugin" -e "LIVE_RELOAD_SUPPORT=true" -e "FAST_MODE=true" -e "DOCS_DIRECTORY=./docs" polinux/mkdocs:$${TAG}; \
			set +x; \
		fi \
	)

[github-actions]

Download the artifacts for this pull request:

• all-ddev-executables.zip
• ddev-linux-amd64.zip
• ddev-linux-arm64.zip
• ddev-macos-amd64.zip
• ddev-macos-arm64.zip
• ddev-windows-amd64-installer.zip

See Testing a PR

[rpkoller]

Left a few comments and thoughts. Overall that looks great!