fix(chip): scale slotted icon size by chip size (#30961)

Issue number: resolves internal

---------

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## What is the current behavior?
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When an icon was placed within a chip, the icon size was the same
regardless of the chip size.

## What is the new behavior?
Scales the size of the icon based on design specifications.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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core/src/components/chip/chip.ionic.scss

@@ -60,12 +60,6 @@
   --border-radius: #{globals.$ion-border-radius-0};
 }
 
-// Chip Icon
-// ---------------------------------------------
-::slotted(ion-icon) {
-  font-size: globals.$ion-font-size-400;
-}
-
 // Size
 // ---------------------------------------------
 
@@ -73,12 +67,20 @@
   min-height: globals.$ion-scale-600;
 
   font-size: globals.$ion-font-size-300;
+
+  ::slotted(ion-icon) {
+    font-size: globals.$ion-font-size-300;
+  }
 }
 
 :host(.chip-large) {
   min-height: globals.$ion-scale-800;
 
   font-size: globals.$ion-font-size-350;
+
+  ::slotted(ion-icon) {
+    font-size: globals.$ion-font-size-400;
+  }
 }
 
 // Subtle Chip