Update 1Password plugin for simpler fetching and state handling

[skos-ninja]

Upon using the 1Password plugin I've encountered a few problems with error states so I've:

• Simplified by adding a Result type for return a possible error
• Changed the fetching function to use the .resolve binding using the secret reference to further reduce the number of api calls
• Fixed the vault title being missing on newer versions of the 1Password app (it appears they've updated the return value from the app but not the SDK yet)

[gschier]

Nice, thanks for the improvements!