Open more "Failed/Pending restart" category

### Is your feature request related to a problem? Please describe.

Use case, you include a huge folder that wasn't synchronized before. Typically, it fails to upload everything on the first run, but let's say 90% is uploaded. What happens is that you end up with a "failed/pending restart" section with 3.000 entries, where 90% is "Sync conflict", and the other 10% is "app terminated, or "connection error".

### Describe the solution you'd like

Very simple, or you add in the "three dots" the option to `resolve all sync conflicts` so I can MASSIVELY choose:
- local file
- server file
- or just delete all pending decisions (for sync conflict)

Additionally, they create their own category, so `failed` and `sync conflict` doesn't enter into the same section, and it can be a lot easier to resolve the 10% missing to upload.

### Describe alternatives you've considered

Honestly, there are, but I think it is so easy to implement that I'd not implement any other alternative.