Updated various old links pointing to `help.rive`
I added additional information and updates as I saw them
Diffs=
d63786fee docs: update links (#7998)
727e0ba8b Add data converters to flutter runtime (#8029)
f25ee97a0 Opensource (tools) tests as part of runtime (#8035)
39b803c58 8020 text fit to box (#8042)
b06e05dc1 Fix dash increment (#8038)
5c312867e Fixing tool drawing (#8028)
Co-authored-by: Gordon <pggordonhayes@gmail.com>