Add Refresh to Cloud Browser item (Request in QGIS)

### Request for documentation
From pull request qgis/QGIS#66249
Author: @JanCaha
QGIS version: 4.2

**Add Refresh to Cloud Browser item**

### PR Description:
## Description

Add menu item to refresh **Cloud** Browser element and its subelements.

Funded by: Ocean Winds

Fixes https://github.com/qgis/QGIS/issues/64348

### Commits tagged with [need-docs] or [FEATURE]