feat: Add warning about share renaming limitation

Signed-off-by: Louis Chemineau <[email protected]>

Author: artonge

user_manual/files/sharing.rst

@@ -61,6 +61,8 @@ For adjusting the acceptance setting, go to **Settings** > **Personal** > **Shar
 .. figure:: ../images/sharing_autoAcceptSetting.png
 
 
+.. warning:: If the owner renames a shared file or folder, the new name will not be reflected on the recipient's side. This is needed to prevent overwriting existing files or folders on the recipient's end.
+
 Others with access
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