Some CSS variables were converted from PF5 to PF6 wrongly

[Venefilyn]

For example

cockpit/pkg/lib/page.scss

Line 147 in b2ceb58

--ct-color-list-hover-icon: var(--pf-v6-global--palette--light-blue-400);

The --pf-v6-global--palette--light-blue-400 does not exist in Patternfly v6.

Running

git grep "pf-v6-global--palette"

Shows

pkg/lib/page.scss:  // Blend between --pf-v6-global--palette--black-200 and 300
pkg/lib/page.scss:  --ct-color-link-hover-bg: var(--pf-v6-global--palette--light-blue-100);
pkg/lib/page.scss:  --ct-color-list-hover-icon: var(--pf-v6-global--palette--light-blue-400);
pkg/lib/page.scss:  --ct-color-list-active-text: var(--pf-v6-global--palette--blue-500);
pkg/lib/page.scss:  --ct-color-list-critical-alert-text: var(--pf-v6-global--palette--red-200);
pkg/lib/page.scss:  --ct-color-list-critical-alert-text: var(--pf-v6-global--palette--red-8888);