fix: customSuggestionsContainer typing fixed in SuggestionsOverlay (#609)

* customSuggestionsContainer typing fixed in SuggestionsOverlay

* changeset added

Author: Sigridur Osp Green Sigurdardottir

.changeset/dull-monkeys-sin.md

@@ -0,0 +1,5 @@
+---
+"react-mentions": patch
+---
+
+typing fix in SuggestionsOverlay.js

src/SuggestionsOverlay.js

@@ -153,7 +153,7 @@ SuggestionsOverlay.propTypes = {
   isOpened: PropTypes.bool.isRequired,
   onSelect: PropTypes.func,
   ignoreAccents: PropTypes.bool,
-  customSuggestionsContainer: PropTypes.any,
+  customSuggestionsContainer: PropTypes.func,
   containerRef: PropTypes.oneOfType([
     PropTypes.func,
     PropTypes.shape({