Fix node-sass and sass-loader not loaded

[tim-kilian]

Closes #63

Changes

• Move node-sass and sass-loader to app dependencies
• Update node-sass and sass-loader to newest version

[codecov]

Codecov Report

Merging #164 into master will increase coverage by 0.29%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #164      +/-   ##
==========================================
+ Coverage   62.17%   62.46%   +0.29%     
==========================================
  Files         154      154              
  Lines        1922     2025     +103     
==========================================
+ Hits         1195     1265      +70     
- Misses        727      760      +33

Impacted Files	Coverage Δ
src/util/Geometry.js	36.36% <0%> (-1.38%)	⬇️
src/core/toolbox/providers/Toolbox.js	79.88% <0%> (+0.51%)	⬆️
src/core/Canvas.js	71.42% <0%> (+1.42%)	⬆️
...c/features/create/behaviors/CreateLabelBehavior.js	66.66% <0%> (+1.44%)	⬆️
src/features/move/commands/MoveElementsCommand.js	50% <0%> (+1.85%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b06ee6d...1a6546b. Read the comment docs.

[tim-kilian]

Removed unwanted commited changes