Addresses documentation gaps as reported in #35078. The documentation only
contained a single statement on foreign function/value compatibility
without going into detail on what this means. This commit adds several
examples to the Ivy compatibility guide and explains why Ivy behaves differently
compared to VE.
PR Close#36092
The main change here was to remove the updating instructions for
version 9 and instead point to update.angular.io. This ensures
we only have one "source of truth" for update instructions.
This commit also includes updates to error message text to
keep them up-to-date with live error messages (and thus keep
them searchable).
PR Close#34498
JoostK
crisbeto
Judy Bogart
Kara Erickson