Allow building with modern NodeJS

[peat-psuwit]

The old devDependencies of this package causes 2 problems:

• It makes building this package in the distributions difficult. Many distros no longer package NodeJS 12 that this project targeted.
• The netdata/devenv package has its NodeJS upgraded to version 20 recently [1]. This breaks development of this package.

This PR aims to modernize the build-time dependencies so that it can be built with modern version of NodeJS (version 18 and newer). This will break support of NodeJS 12 this project is currently using. However, since NodeJS 12 is EOL'ed for over a year already, I think it's time to move on.

Updating the runtime dependencies of this project is not the aim of this PR.

Note that due to behavior changes in NPM v7 and above [2], we need to use --legacy-peer-deps flag every time we install packages with NPM. This boils down to the conflict between @netdata/react-filter-box's dependencies which contain react@^16.6.3, and @netdata/netdata-ui's peerDependencies which contains react@^18.2.0 (even in version 2.0.0 specified in package-lock.json). Because of this conflict, we can't just raise this package's peerDependencies of react, and will have to fix the dependencies of @netdata/react-filter-box first.

[1] https://github.com/netdata/community/pull/85 [2] https://stackoverflow.com/a/66620869

[peat-psuwit]

At the moment I can get dependencies to install on NodeJS 20. I've upgraded react-scripts, Typescript to the latest versions, fixed various typing errors, and fixed Webpack errors. I'm still stuck with ESLint dependencies (I suspect I have to upgrade all of them & fix various errors that will appear), but I'm out of time now so I'll leave it here in case someone is interested in continuing the work. If I happen to find some time again, I might return to continue this work.

[peat-psuwit]

I now manage to build this package under NodeJS 20 and NodeJS 18. I quickly test of the dashboard and it seems to work. So I believe this is ready for review.