Share snapshots on the internet

[ZJvandeWeg]

Description

This epic centers around improving the sharing capabilities of snapshots. The aim is to simplify the process of sharing these snapshots, making it more straightforward to distribute and discuss them within community forums or amongst collaborators. This will enhance user engagement, facilitate community support, and encourage collaborative development.

### Tasks
- [ ] https://github.com/FlowFuse/flowfuse/issues/3627
- [ ] https://github.com/FlowFuse/flowfuse/issues/3815
- [ ] https://github.com/FlowFuse/flowfuse/issues/3629
- [ ] https://github.com/FlowFuse/flowfuse/issues/3628
- [ ] https://github.com/FlowFuse/flowfuse/issues/3626
- [ ] https://github.com/FlowFuse/flowfuse/issues/3623
- [ ] Device snapshot download feature

Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate

[joepavitt]

Why is #3623 part of this tasklist, they're not related?