#1036 Relaxed the error handling of the core client init

[kittaakos]

Motivation

PR To improve the resilience of the IDE2 startup. IDE2 should be able to start although there is a malformed custom board options problem with one of the installed cores.

Change description

This PR relaxes the handling of the received error status messages during the gRPC core client init:

• the proposed change does not aggressively cancels the gRPC duplex when the first error status is received,
• improves the logging

Other information

Closes #1036

How to verify:

• IDE2 must be able to start and function when the directories#data location is empty or does not exists. (The directories#data is on ~/Library/Arduino15/). (Please rename this folder to /Arduino16 or similar. I deleted it for local checks.)
• If the IDE2 starts and boards, cores, and libs can be searched, then the PR preserved the async core/lib index update at startup. This is good for performance.
• Next, follow the steps from the original issue.
• If the boards, cores, and libs search work but the following error is in the logs, the issues should be fixed:

root ERROR Detected an error response during the gRPC core client initialization: code: 9, message: Error loading hardware platform: loading platform release esp8266:[email protected]: loading boards: skipping loading of boards esp8266:esp8266:espduino: malformed custom board options

Reviewer checklist

• PR addresses a single concern.
• The PR has no duplicates (please search among the Pull Requests before creating one)
• PR title and description are properly filled.
• Docs have been added / updated (for bug fixes / features)

[per1234]

This fixes both #1036 and #1036 (comment) for me.

Thanks Akos!