fix: font fallbacks types (#2727)

Author: hendrikmolder

.changeset/rare-moles-raise.md

@@ -0,0 +1,5 @@
+---
+"@react-pdf/types": patch
+---
+
+accept string array for `fontFamily` in stylesheets

packages/types/font.d.ts

@@ -20,7 +20,7 @@ export interface FontDescriptor {
 
 interface FontSource {
   src: string;
-  fontFamily: string | string[];
+  fontFamily: string;
   fontStyle: FontStyle;
   fontWeight: number;
   data: any;

packages/types/style.d.ts

@@ -64,7 +64,7 @@ export interface Style {
   // Text
 
   fontSize?: number | string;
-  fontFamily?: string;
+  fontFamily?: string | string[];
   fontStyle?: string | 'normal';
   fontWeight?:
     | number