fix(toolbar): updated toolbar token on ionic theme (#30054)

Issue number: internal

---------

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## What is the current behavior?
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- Updated toolbar font-size to use new tokens.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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- [Toolbar Ionic
Theme](https://ionic-framework-3vljb9d5n-ionic1.vercel.app/src/components/toolbar/test/theme-ionic)

Author: BenOsodrac

core/src/components/toolbar/toolbar.ionic.scss

@@ -88,5 +88,5 @@ $toolbar-order-ionic: (
   justify-content: end;
   order: map-get($toolbar-order-ionic, slot-end);
 
-  font-size: var(--ionic-font-size-600, 1.5rem);
+  font-size: globals.$ion-font-size-600;
 }