fix(card): prefer color-palette over color

Author: bennypowers

.changeset/context-controller-cavalcade.md

@@ -48,8 +48,8 @@
     <pfe-band color-palette="darkest">...</pfe-band>
     ```
 - Removes `pfe-contexts` mixin from `pfe-sass`, use controllers or decorators instead
-- Removes `pfe-accordion--expanded` mixin from `pfe-sass` and inlines it
-- Deprecates `context` attribute,
+- Removes `pfe-accordion--expanded` mixin from `pfe-sass`, and inlines it
+- Removes `context` attribute,
     Before;
     ```html
     <pfe-modal context="dark">

elements/pfe-card/pfe-card.ts

@@ -87,10 +87,10 @@ export class PfeCard extends LitElement {
    * Card always resets its context to `base`, unless explicitly provided with a `color-palette`.
    */
   @colorContextProvider()
-  @property({ reflect: true, attribute: 'color-palette' }) colorPalette?: ColorPalette;
+  @property({ reflect: true, attribute: 'color-palette' }) colorPalette?: ColorPalette = 'base';
 
   /** @deprecated use `color-palette` */
-  @deprecation({ alias: 'colorPalette', attribute: 'color' }) color: ColorPalette = 'base';
+  @deprecation({ alias: 'colorPalette', attribute: 'color' }) color?: ColorPalette;
 
   /**
    * Sets color theme based on parent context