Some glyphs or combinations of glyphs have weird rendering

[Corne2Plum3]

Describe the bug Some glyph of combinations of the font have weird rendering.

• Digits 0, 6 and 9 aren't rendered properly, there are "small holes" in the font
• Arrows (->, -->, etc.) aren't perfectly straight...
• /* and */ is completely broken.

Seems like the theme or the text color doesn't change anything.

To Reproduce Type some text as described above on any file.

Expected behavior The text is rendered properly

Screenshots

Desktop (please complete the following information):

• OS:

OS: Ubuntu 23.10 x86_64 
Kernel: 6.5.0-26-generic 
Shell: bash 5.2.15 
Resolution: 1920x1080 
DE: Plasma 5.27.8 
WM: kwin 
WM Theme: Flight-Color-Dark-Aurorae 
CPU: 12th Gen Intel i7-12650H (16) @ 4.600GHz 
GPU: NVIDIA GeForce RTX 4070 Max-Q / Mobile 
GPU: Intel Alder Lake-P GT1 [UHD Graphics] 
Memory: 15686MiB 

• Version 1.1.1

[face-hh]

They're called "ligatures" and come from FiraCode. It's intended, and the only way to "fix" it would be to add a font picker, which isn't there yet

[zSnails]

There is a bug with the built in fira code font, I checked using the one on my system and everything is rendered fine, this could be fixed by #66.

We can also update the built in font, as that's the one with the issues.

@face-hh The holes they mentioned are a bug with the font, which can be fixed by updating the built in font.