fix(sdk): adds explicit return type to getSocialIcon for simpler jsdoc parsing

Author: gregfromstl

packages/thirdweb/src/react/core/utils/walletIcon.ts

@@ -62,7 +62,7 @@ export const socialIcons = {
  *
  * @walletUtils
  */
-export function getSocialIcon(provider: AuthOption | ({} & string)) {
+export function getSocialIcon(provider: AuthOption | ({} & string)): string {
   switch (provider) {
     case "google":
       return googleIconUri;