feat: Add gamepad icon

[awgv]

Closes #469. In case you want to also check the duplicates, #469 is a duplicate of #120 that already has a PR attached to it (#134). Some things to mention:

1. 2x2 buttons are lines with .01 length like in Fix dots in Figma #728.
2. Since the icon’s shape is narrow, I had to stretch it into the “safe zone” to preserve the optical volume.

In general, gamepads have shapes that are too complex for 24x24 canvases. I think that Google made a good choice by picking the Nintendo Entertainment System controller for Material icons, because not only it’s an iconic object, it’s simple enough to be replicated as an icon, so I did the same for Feather.

[codecov]

Codecov Report

Merging #760 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #760   +/-   ##
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  Coverage     100%   100%           
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  Files           5      5           
  Lines          34     34           
  Branches        3      3           
=====================================
  Hits           34     34

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[moeenio]

Looks good!