Update to 5.17.0 and install via npm

[jamesmyatt]

Checklist

• [x] Used a fork of the feedstock to propose changes
• [ ] Bumped the build number (if the version is unchanged)
• [x] Reset the build number to 0 (if the version changed)
• [x] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [x] Ensured the license file is being packaged.

I don't know very much about javascript and npm, but I've taken inspiration from other feedstocks like:

• https://github.com/conda-forge/moment-feedstock/blob/master/recipe/meta.yaml
• https://github.com/conda-forge/svg2png-feedstock/blob/master/recipe/meta.yaml
• https://github.com/conda-forge/gulp-feedstock/blob/master/recipe/meta.yaml

I can't say I'm sure that this is correct, since the test doesn't seem to have worked correctly: https://dev.azure.com/conda-forge/feedstock-builds/_build/results?buildId=248384&view=logs&j=656edd35-690f-5c53-9ba3-09c10d0bea97&t=e5c8ab1d-8ff9-5cae-b332-e15ae582ed2d&l=1142

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

I do have some suggestions for making it better though...

For recipe:

• Jinja2 variable references are suggested to take a {{<one space><variable name><one space>}} form. See lines [11].

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

I do have some suggestions for making it better though...

For recipe:

• Jinja2 variable references are suggested to take a {{<one space><variable name><one space>}} form. See lines [16].

[jamesmyatt]

@conda-forge-admin, please rerender

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.