docs(jsdoc): add comment for BaseStyleProp

Add JSDoc comments for BaseStyleProp interface

re #61

Signed-off-by: Niloy Sikdar <niloysikdar30@gmail.com>

src/components/types/index.ts

@@ -1,6 +1,12 @@
 import { CSSProperties } from 'react';
 
 export interface BaseStyleProp<T extends string> {
+  /**
+   * The classes object to be merged with the base styles.
+   */
   classes?: Partial<Record<T, CSSProperties>>;
+  /**
+   * The class name to be applied to the element.
+   */
   className?: string;
 }