[React] Resolve duplicate react instances issue

[illiakovalenko]

Description / Motivation

• React throws invalid hook call error in case multiple react instances are used in the sample
• By default yarn doesn't solve duplicate react dependencies issue
• react-app-rewire provides way to customize webpack config for create-react-app template
• Provided alias for webpack config, to have a single react instance

Testing Details

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

[ambrauer]

Looks good. Not ideal, but this seems like our best option for monorepo support (matches the approach we take with the nextjs template).