Add missing constraints to NPM dependencies
Add missing constraints to NPM dependencies

Updated:
- locomotive-scroll v4.1.2
- normalize.css v8.0.1
- svg4everybody v2.1.9

stephenbe/locomotive-boilerplate,stephenbe/locomotive-boilerplate,locomotivemtl/locomotive-boilerplate,stephenbe/locomotive-boilerplate,locomotivemtl/locomotive-boilerplate