fix: allow React.ReactNode as imageTitle and imageCaption in TypeScript projects (frontend-collective#158)

Author: stby4

index.d.ts

@@ -20,8 +20,8 @@ export interface ILightBoxProps {
     animationDuration?: number;
     keyRepeatLimit?: number;
     keyRepeatKeyupBonus?: number;
-    imageTitle?: string;
-    imageCaption?: string;
+    imageTitle?: React.ReactNode | string;
+    imageCaption?: React.ReactNode | string;
     imageCrossOrigin?: string;
     toolbarButtons?: React.ReactNode[];
     reactModalStyle?: any;