fix(picker): update font color for focus state

- in the keyboard focus state, the picker font color was resolving to
 gray-800, when gray-900 (neutral-content-color-focus) was expected.

Author: marissahuysentruyt

components/picker/index.css

@@ -54,7 +54,7 @@
 	--spectrum-picker-font-color-hover: var(--spectrum-neutral-content-color-hover);
 	--spectrum-picker-font-color-hover-open: var(--spectrum-neutral-content-color-focus-hover);
 	--spectrum-picker-font-color-active: var(--spectrum-neutral-content-color-down);
-	--spectrum-picker-font-color-key-focus: var(--spectrum-neutral-content-color-key-focus);
+	--spectrum-picker-font-color-key-focus: var(--spectrum-neutral-content-color-focus);
 
 	--spectrum-picker-icon-color-default: var(--spectrum-neutral-content-color-default);
 	--spectrum-picker-icon-color-default-open: var(--spectrum-neutral-content-color-focus);