Zerim/fix/yarn workspace monorepo 2.8.0

[Zerim]

This PR introduces two changes:

• Tells webpack not to resolve symlinks to their actual location (this allows loaders, specifically ts-loader to find the file correctly).
• Adds a "rootNodeModules" path to the include path of ts-loader.

The rootNodeModules represents the path of where the node_modules might be in a yarn workspace monorepo. As of this change, what yarn does is hoist and symlink dependencies in the node_modules of the root directory of the monorepo. These two changes allow ts-loader to correctly find and load those dependencies.

[Jannis]

I don't think I can perform a useful review at this point, as I don't understand the problem. ;)

If it works, then I'm good with the changes. 👍