refactor(tauri) update error handling crate to anyhow+thiserror, close #613

[wusyong]

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• New Binding Issue #___
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change? (check one)

• Yes. Issue #___
• No

The PR fulfills these requirements:

• It's submitted to the dev branch and not the master branch
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix: #xxx[,#xxx], where "xxx" is the issue number)

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:
In this PR, it replaces all functions from error-chain to a more modern error handling crate: anyhow. Most return calls can be even reduced to ? operand in this way. If there's a custom error needed, it uses thiserror to define a new error enum.
Close #613

[nothingismagick]

great work - and cheers for the cleanup here and there too!

[wusyong]

Hey, sorry about several rebases out there. I tried to make it pass the CI. I'm not sure why it can't pass the job of Gatsby Themed Site on Windows, while it's working on my fork. Perhaps it's because of cache?

[jbolda]

I'm fine ignoring that error. Gatsby has been a bit flaky with releases past few weeks. That is a Gatsby error, not a Tauri one.

[tensor-programming]

Great work. Looks good from where I am; like that we've remove all of the bail! calls too.