Even though we tell the user to change the version manually if it
doesn't match with the current
`Toolchain/Local/i686/i686-pc-serenity/include/XX.X.X` version, it
doesn't hurt to update it properly now that versions differ by major
version.
Remove note about CMake Tools as version 1.9.0 has shipped and no longer
needed. Update details for files to latest versions and allow easier
copy and paste into an empty file.
This is a combination of the efforts of multiple people and hours of
pain trying to configure VSCode properly. This should give a good
baseline for anyone trying to develop Serenity with VSCode.
Co-authored-by: Hendiadyoin1 <leon2002.la@gmail.com>