fix: deprecate unused fontData prop (#2753)

# Summary
Fixes: #2478 

The `fontData` property was created for internal usage within the
library and was never intended to be exposed or used by external users.
PR deprecate this prop to avoid confusion and ensure the public API
remains clean and aligned with SVG standards.

## Test Plan
Run example from issue: #2478, you should see a warning:
<img width="577" height="189" alt="image"
src="https://github.com/user-attachments/assets/a9cce281-84e5-4a20-806f-9c0ac0ec0d24"
/>

Author: kacperzolkiewski

src/lib/extract/extractText.tsx

@@ -53,7 +53,6 @@ function parseFontString(font: string) {
 }
 
 interface fontProps {
-  fontData?: unknown;
   fontStyle?: string;
   fontVariant?: string;
   fontWeight?: NumberProp;
@@ -73,7 +72,6 @@ interface fontProps {
 
 export function extractFont(props: fontProps) {
   const {
-    fontData,
     fontStyle,
     fontVariant,
     fontWeight,
@@ -92,7 +90,6 @@ export function extractFont(props: fontProps) {
   } = props;
 
   const ownedFont = pickNotNil({
-    fontData,
     fontStyle,
     fontVariant,
     fontWeight,

src/lib/extract/types.ts

@@ -382,6 +382,9 @@ export interface TextSpecificProps extends CommonPathProps, FontProps {
   verticalAlign?: NumberProp;
   lengthAdjust?: LengthAdjust;
   textLength?: NumberProp;
+  /**
+   * @deprecated Use other font props instead.
+   */
   fontData?: null | { [name: string]: unknown };
   fontFeatureSettings?: string;
 }