Tests that disconnecting from the session clears the media query emulations
Computed values before setting emulated media:
    --prefers-color-scheme: nomatch;
    --prefers-reduced-motion: nomatch;
    --prefers-reduced-data: nomatch;
    --prefers-reduced-transparency: nomatch;
    --prefers-contrast: nomatch;
    --color-gamut: nomatch;
    --forced-colors: nomatch
Computed values after setting emulated media:
    --prefers-color-scheme: dark;
    --prefers-reduced-motion: reduce;
    --prefers-reduced-data: reduce;
    --prefers-reduced-transparency: reduce;
    --prefers-contrast: more;
    --color-gamut: p3;
    --forced-colors: active
Computed values after disconnect:
    --prefers-color-scheme: nomatch;
    --prefers-reduced-motion: nomatch;
    --prefers-reduced-data: nomatch;
    --prefers-reduced-transparency: nomatch;
    --prefers-contrast: nomatch;
    --color-gamut: nomatch;
    --forced-colors: nomatch