plugin system breaks user storage abstraction

[akosyakov]

UserStorageService encapsulates where user data are stored, by default under .theia in user home.

Plugin system leaks it with own implementation: https://github.com/theia-ide/theia/blob/ad9e62bd78bf4da3ce829b25de64f9aa3fc8aaeb/packages/plugin-ext/src/main/node/paths/plugin-paths-service.ts#L140-L147

[kittaakos]

UserStorageService encapsulates where user data are stored, by default under .theia in user home.

The default workspace server uses a hard-coded .theia path too:

theia/packages/workspace/src/node/default-workspace-server.ts

Lines 165 to 167 in 1eaecd5

	protected getUserStoragePath(): string {
	return path.resolve(os.homedir(), '.theia', 'recentworkspace.json');
	}

[mmorhun]

@kittaakos there is a PR which will handle that too: #6650
I'm going to update it as soon as I regain write access into Theia repository.

[akosyakov]

@mmorhun if it is quite important change for 1.0, since we need Electron running vscode extensions properly. If it takes long please raise it that someone can add additional commits to finish it. You should also be able to open a new PR from your fork in the meantime as a workaround of missing write access.

[mmorhun]

@akosyakov I've pinged Eclipse Webmater, so I think in a day or so the issue should be resolved.