update reinstall script to not use lerna (#6906)
update reinstall script to not use lerna (#6906)

although bash scripts should be kept to a minimum, here we don't really
have a choice. `npm run reinstall` should work no matter if
`node_modules` are available or not, it should working in any kind of
state of the monorepo.

thus, we cannot use `lerna exec -- rm -rf ...`, which simplifies
removing of `dist` and similar. That's because user might try to `npm
run reinstall` when node_modules are corrupted, not installed or half
installed and `lerna` is not available.
wix/wix-style-react,wix/wix-style-react,wix/wix-style-react,wix/wix-style-react