Synchronization issues with Tags

Renaming a tag from iOS results in a blank tag showing inside a note in the web app.
Trying to do something with this tag later in the web app results in tags duplication and synchronization issues.

Please take a look at the following video:
[Tags.mov.zip](https://github.com/Automattic/simplenote-electron/files/5501332/Tags.mov.zip)

### Expected
Tags look and order is the same on all devices.

### Observed
* Tags are in a different order
* Renaming a tag on iOS results in an empty tag on the web
* Duplicated tags
* Invincible tags that can't be deleted

### Reproduced
0. Open the web app and iOS app
1. On the web: add tags `t1`, `t2`, `t3`, `t4` to the note
2. See that the order of tags is different
3. iOS: Rename `t2` to `t2-1`
4. Web: Tag `t2` in the note becomes empty
5. Web: Rename tag `t2-1` to `t2-1-1`
6. Web: There are now 2 tags `t2-1-1`

### Where did you see the bug
- System Make: Apple
- System Model: Macbook
- OS: Catalina
- OS version: 10.15.7
- Browser (if applicable): Safari
- Browser version (if applicable): 14
- Simplenote app version:

Start by reproducing the tag workflow across the web app and iOS app using the listed steps, and compare tag order and names after each synchronization. Done means renamed tags remain non-empty, unique, deletable, and in the same order on all devices.

Written by the indexing model from the issue text.