support intranet

[robberphex]

In intranet (the network without internet access), The browser cannot load fonts.googleapis.com resources.

So, use package material-design-icons to load local resources.

[ghost]

All CLA requirements met.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 15.57%. Comparing base (42f5f47) to head (1c92ab9).
⚠️ Report is 27 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #159   +/-   ##
=======================================
  Coverage   15.57%   15.57%           
=======================================
  Files           7        7           
  Lines         443      443           
=======================================
  Hits           69       69           
  Misses        368      368           
  Partials        6        6           

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[artursouza]

@robberphex This PR is not working with the latest changes. We are cutting a release now. We will get back to this one afterwards.