Multi-select Apply button hover state is too faint

[BorisTyshkevich]

Summary

The new multi-select control uses a very pale/faded hover style for the Apply button. The hovered button looks disabled and has weak contrast, even when an Apply action is available.

Reproduction

1. Open a multi-select filter control.
2. Change one or more selections so Apply is enabled.
3. Hover the Apply button.

Actual result

The hover background becomes very light/faded and the button loses its clear enabled-action affordance. It is difficult to distinguish from a disabled state.

Expected result

The enabled Apply button should use a brighter, higher-contrast hover state consistent with the application's primary action styling. Disabled, enabled, hover, focus-visible, and active states should remain visually distinct.

Acceptance criteria

• Enabled Apply has a clearly visible default style.
• Hovering enabled Apply makes the action more prominent, not more faded.
• Disabled Apply remains visibly distinct from the enabled hover state.
• Text/background contrast remains readable in supported themes.
• Keyboard focus-visible and pressed/active states remain clear.
• Add or update UI/CSS coverage for the multi-select footer action states.

Screenshot

Observed in the new multi-select control: the Apply button at the bottom-right becomes a pale gray/white treatment on hover and visually resembles a disabled button.