feat(nimbus): add export metric areas feature

[moibra05]

Because

• Grouped metrics need to have an easy way to share with others through methods other than link sharing

This commit

• Adds the ability to copy a table's link, contents, or export it as a pdf

Fixes #13725

[moibra05]

Sample pdf structure:

Sample copied table structure:

[moibra05]

Future prs could bring support to export more formats. This pr only brings pdf exports

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[mozcloud-preview-environments]

Preview environment has been deployed.

Preview URL: https://pr14344-experimenter.preview.mozilla.cloud

It may take up to 5 minutes for the environment to become available.
If the link doesn't work immediately, please wait a few moments and try again.

You can monitor deployment status in Argo CD.