[Bug] Cannot upload images to gallery block with sync disabled.

### Bug Description

When sync is disabled for appflowy cloud beta, uploading an image to a gallery doesn't add it to the gallery block.
I get: "One or more images failed to upload, please try again."

### How to Reproduce

1. Disable sync in appflowy cloud beta.
2. Upload an image to an existing gallery.

### Expected Behavior

Should upload. Regardless if it's not connected to cloud, I think it should save the image to the appflowy data folder and of course show it in the gallery.

### Operating System

Linux

### AppFlowy Version(s)

v0.6.7

### Screenshots

_No response_

### Additional Context

_No response_