getRenderingStatus = job => ({
    uid: job.uid,
    state: job.state,
    type: job.type,
    tags: job.tags || null,
    renderProgress: job.renderProgress || 0,
    error: (job.error && Array.isArray(job.error) ? job.error.join('\n\n') : job.error) || null,
    createdAt: job.createdAt || null,
    updatedAt: job.updatedAt || null,
    startedAt: job.startedAt || null,
    finishedAt: job.finishedAt || null,
    errorAt: job.errorAt || null,
    jobCreator: job.creator,
    jobExecutor: job.executor || null,
    timings: job.timings || null,
})
Returns a lightweight representation of the job. Containing only rendering infos.
@param  {Object} job
@return {Object} {uid: string, state: string, type: string, renderProgress: number, error: string}