Commit hash in next versions breaks semver resolution

[tortmayr]

The workaround to add the commit hash into next version qualifiers unfortunatley breaks semver resolution. NPM can no longer correctly derive higher and lower versions.
For instance ^1.1.0-next.903b293.202 should match any version >=^1.1.0-next.x.202.
As we can see in this screenshot this is not the case:

We should handle this in the same way as Theia and simply use the default lerna versioning without the additional commit hash