Update javascript libraries in various places

[dholbach]

Update javascript libraries in various places, needs newer node.

[daniel@reef scope ]$ cat client/Dockerfile 
# Changes to this file will not take effect in CI
# until the image version in the CI config is updated. See
# https://github.com/weaveworks/scope/blob/master/.circleci/config.yml#L11
FROM node:8.12
[...]

[qiell]

lgtm

[dholbach]

@fbarl Can you advise on the update for the CI related bits?

[fbarl]

Can you advise on the update for the CI related bits?

So, the UI image that CircleCI currently uses is weaveworks/scope-ui-build:master-c0b60a16 which seems to be about a year old. The last node version bump happened in #3231 also about a year ago, so that seems right.

I'm not sure this is the best way to proceed but what we could do for sure is:

1. Merge a separate node version bump PR into master first (would be a forced merge as the CircleCI would fail with the same errors as here)
2. I can build that master locally and push the new weaveworks/scope-ui-build image to Dockerhub manually
3. We update .circleci/config.yml#L11 here with the new Dockerhub image and fix the CircleCI errors

This doesn't sound like the optimal approach though and I wonder if @bboreham knows of any better way to proceed. If not, we could follow those 3 steps above and get it out of the way.

[bboreham]

The change to use specific tags for CircleCI build image was in #3333, but I can't see that I explained it very well.
The build image has always been hand-pushed from someone's machine.
I suggest building and pushing from this branch, then add a commit to this PR to make config.yml use that image, then after it is merged we can update with a tag from master.

[fbarl]

Checklist (suggested by @bboreham):

• Build and push the image from this branch to Dockerhub
• Add a commit that updates config.yml with the new image tag + comment about reverting
• Open a new PR which switches back to the new master tag after this PR is merged

[fbarl]

Going to merge this PR after #3689 is merged.