MM-52093 : Revert back the 'global-style' npmrc config (#22901)

"global-styles" was added to hoist fewer dependencies from packages to the root node_modules and was initially intended to fix some issues with mismatched dependency versions in the Boards unit tests. However, it was found to be causing problems when the same version of dependencies was used across the products.

webapp/.npmrc

@@ -1,3 +1,2 @@
 save-exact=true
 legacy-peer-deps=true
-global-style=true