Prod build is 24.5 MB , mostly due to Roboto? 11MB

### Issue type

**I'm submitting a ...** (check one with "x")

* [ ] bug report
* [ ] feature request
* [X ] question about the decisions made in the repository

### Issue description

**Current behavior:**

Prod build is very big

**Expected behavior:**
Smaller production build

**Steps to reproduce:**
Build the project for production
**Related code:**

Can Roboto be removed?

"roboto-fontface": "0.8.0",

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### Other information:

**npm, node, OS, Browser**
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**Angular, Nebular**
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