Fix font preload warning

[neilenns]

Fixes #110

• Remove the preload flag from the link

[pierr3]

I mean without the preload flag, this will do nothing - I don't know why the warning appears when those fonts are loaded in CSS shortly after. This avoid a delay in the font rendering when opening the application

[neilenns]

True, I should read more on preload before opening the PR 😬

I didn't notice any difference in rending without the preload. Don't forget that electron-vite now has the loading animation too, so there's tons of time for the font to load from resources?