fix: imports

Author: MaksymStoianov

src/appsscript/sheets/index.ts

@@ -24,6 +24,8 @@ export { isTextStyle } from "./isTextStyle";
 export { isValidSheetName } from "./isValidSheetName";
 export { isValidSpreadsheetId } from "./isValidSpreadsheetId";
 
+export { nonSheet } from "./nonSheet";
+
 export { parseA1Notation } from "./parseA1Notation";
 
 export { toA1Notation } from "./toA1Notation";