[data grid] unify palette usage

Palette value usage is not really uniform in the data grid in its current form.

Palette → Grey

• Grey palette values are not really used in the DataGrid.
• Example: grey700 affects ColumnMenu tooltips, but cells use the browser default tooltip styling.
• Borders, text, and icons are not linked to Grey tokens at all.

👉 Code Example 1.1

Palette → Actions (Naming & Behavior)

• Many icons use actions -> active as their default color fill.
• selected changes some component background like chip background rather than indicating a selected icons, cells or something like this.
• Hover colors differ:
  • MenuListItems → predictable hover colors
  • DataGrid rows → less predictable hover colors because its a calculated color out of the hover value (thats how material works).

👉 Code Example 1.2

Wish (Request):

A consistent, well-documented theming structure with a transparent token hierarchy — whether based on Material 3 color tokens or the W3C alias token approach.