[Chapel Merge] Update the library technote to mention '--client-server-library' flag

Branch: refs/heads/main
Revision: df31b6cb11c715fbedd68d2976a144baf156cf17
Author: dlongnecke-cray
Link: Update the library technote to mention '--client-server-library' flag by dlongnecke-cray · Pull Request #28504 · chapel-lang/chapel · GitHub
Log Message:
Update the library technote to mention '--client-server-library' flag (#28504)

Make sure to mention the new --client-server-library flag in the
library technote, and add a note mentioning that the default behavior of
the --library flag in multi-locale compilation settings has changed.

Future work will need to rewrite the sections about multi-locale
libraries entirely, opting to instead use a new term such as
"client-server library" in order to more strongly differentiate them.

Reviewed by @DanilaFe. Thanks!

Compare: Comparing 70d760a868ebbe68dc46fe356da7d0ff535bd3d0...98e01bf9891a576d5c8e676621a9e08c059b9815 · chapel-lang/chapel · GitHub

Diff:
M doc/rst/technotes/libraries.rst
https://github.com/chapel-lang/chapel/pull/28504.diff