feat(chip, chip group): Add component tokens

packages/calcite-components/src/components/chip-group/chip-group.scss

@@ -6,19 +6,19 @@
   display: flex;
   inline-size: 100%;
   flex-wrap: wrap;
-  gap: theme("spacing.2");
+  gap: var(--calcite-spacing-sm);
 }
 
 ::slotted(calcite-chip) {
   flex: none;
 }
 
 :host([scale="s"]) .container {
-  gap: theme("spacing.1");
+  gap: var(--calcite-spacing-xs);
 }
 
 :host([scale="l"]) .container {
-  gap: theme("spacing.3");
+  gap: var(--calcite-spacing-md);
 }
 
 @include disabled();