Konsole rendering messed up for non-mono version on master branch
#### 🗹 Requirements

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#### 🎯 Subject of the issue

On the master branch, patched symbols maintain their advance value from the original font, instead of being adjusted to match the target font. This messes up Konsole and emacs terminal which don't use strict grid-based rendering. The 2.1.0 version does not have this problem.

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#### 🔧 Your Setup

- _Which font are you using (e.g. `Anonymice Powerline Nerd Font Complete.ttf`)?_
Hack Nerd Font Complete
- _Which terminal emulator are you using (e.g. `iterm2`, `urxvt`, `gnome`, `konsole`)?_
Konsole
- _Are you using OS X, Linux or Windows? And which specific version or distribution?_
Archlinux

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