Add Braille font family to monospace @ fontconfig (#901)

Some programs like `gotop` [1] or `bottom` / `btm` [2] weren't displaying properly, and I was able to fix the glyphs with the Braille font (don't recall where I found the recommendation).

Don't forget to 

```sh
fc-cache -fv --really-force
```

Also beware of stuff like [4].

needs `ttf-ubraille` [3] so an update in LARBS progs.csv would be needed aswell

[1] https://aur.archlinux.org/packages/gotop
[2] https://aur.archlinux.org/packages/bottom-bin
[3] https://aur.archlinux.org/packages/ttf-ubraille
[4]  https://wiki.archlinux.org/index.php/Font_configuration#Disable_scaling_of_bitmap_fonts

.config/fontconfig/fonts.conf

@@ -30,6 +30,7 @@
 		<prefer>
 			<family>Noto Sans Mono</family>
 			<family>Liberation Mono</family>
+			<family>Braille</family>
 		</prefer>
 	</alias>
 </fontconfig>