images: turn off webworker, fixes issue on safari on hosted ships

[patosullivan]

fixes LAND-1117 by disabling the web worker for compression.

Tlon Hosting's CSP doesn't allow for blobs from a web worker. Other browsers fallback to just using the main thread if the web worker fails, Safari does not for some reason, so hosted users either using Safari (or using the mobile app) could not upload images.

[linear]

LAND-1117 Sending an image via DM (with new joinee) does not work

Describe the bug, optionally with screenshots
I recently onboarded a friend via profile QR code, which worked flawlessly. In the DM between us that was initialized, we each tried to send one another an image, but both ran into a similar issue:

1. We could tap the + button to select an image
2. We could select an image from our phone/OS, and submit it to be uploaded
3. A small loader would appear in the input, suggesting that an image was about to populate the message input, but nothing would show up. I've reproduced this in the video below:

Screen Recording 2023-10-25 at 11.23.38 PM.mov

Edit: Checking Devtools while uploading produced the following two errors in the console:

1. Refused to load blob:``[https://fabled-faster.tlon.network/82d2b117-10c8-48c7-93ad-b832c4b782a0](https://fabled-faster.tlon.network/82d2b117-10c8-48c7-93ad-b832c4b782a0)`` because it does not appear in the worker-src directive of the Content Security Policy.
2. Unhandled Promise Rejection: error: undefined

The first error showed up when I submitted an image selected from my device.

The second of these errors showed up only when the image attachment appeared to fail:

Screen Recording 2023-10-25 at 11.29.41 PM.mov

To Reproduce
Steps to reproduce the behavior:

1. Invite someone via profile QR
2. If they join successfully, attempt to send them an image via the DM created between you both.
3. If you run into issues with a selected image being attached to the message field, you've reproduced the bug

Expected behavior
I expect images to attach to messages after they're selected from the OS/phone.