Website-redesign - Update `info-cards` according to design (change border top & icon color to #4354a3; change box shadow)
GitOrigin-RevId: 6f7a3fd5b456a699a09196a9663f310acddacd56
* [cm6] Show Regex errors in find & replace
* cleanup, isInvalidRegExp function
* no state variable, less color var
* use @brand-dager
* using var(--ol-cm-search-form-focus-shadow)
* using state-danger-border
GitOrigin-RevId: 844c9dfee5a56d2a7494cd86c266acbe9eacd033