[dashboard] Display specific Prebuild cancellation reason in Prebuild Status again

[jankeromnes]

Description

When our system decides to cancel a prebuild automatically, it also mentions the specific cancellation reason in prebuild.error:

gitpod/components/server/ee/src/prebuilds/prebuild-manager.ts

Lines 224 to 225 in c87781b

	prebuild.error =
	"Prebuild is rate limited. Please contact Gitpod if you believe this happened in error.";

gitpod/components/server/ee/src/prebuilds/prebuild-manager.ts

Lines 230 to 231 in c87781b

	prebuild.error =
	"Project is inactive. Please start a new workspace for this project to re-enable prebuilds.";

gitpod/components/server/ee/src/prebuilds/prebuild-manager.ts

Lines 235 to 236 in c87781b

	prebuild.error =
	"Repository is inactive. Please create a project for this repository to re-enable prebuilds.";

Also, we used to display this exact message below the Prebuild Logs, so that users could be aware why exactly their prebuild got cancelled:

gitpod/components/dashboard/src/projects/Prebuilds.tsx

Lines 338 to 344 in 3133297

	case "aborted":
	return (
	<span>
	Prebuild has been cancelled. Either a user cancelled it, or the prebuild rate limit has been
	exceeded. {props.prebuild.error}
	</span>
	);

Unfortunately, we recently stopped displaying this reason entirely:

gitpod/components/dashboard/src/projects/Prebuilds.tsx

Lines 341 to 342 in 8200bfb

	case "aborted":
	return `Prebuild has been cancelled. Either a newer commit was pushed to the same branch, a user cancelled it manually, or the prebuild rate limit has been exceeded.`;

I believe this may have been accidental. This Pull Request shows the specific cancellation reason again.

Related Issue(s)

Fixes #

How to test

1. Get a prebuild cancelled for any reason
2. Check the cancelled prebuild for why it was cancelled (specific reason should be displayed)

Release Notes

NONE

Documentation

Werft options:

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-integration-tests=all
  Valid options are all, workspace, webapp, ide