Bug/bootstrap download blocked

[banders]

Description

Removed the bootstrap CSS (CDN) dependency that was included in the HTML report. That dependency was problematic because it caused style conflicts between the report and the rest of the page the contains the report, and also because in some deployments the browser wasn't able to download the dependency at all.

Added a little bit of new CSS directly to the report to handle formatting of elements that we previously relied on bootstrap for. (This also fixes the unwanted cellpading in the "Employer details" table at the top of the report.)

Other minor content organization and wording updates to the report.

Also fixed an existing unit test that was failing in the doc-gen-service.

Fixes (GEO-183)

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Existing unit tests. Visual test in a browser.

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have already been accepted and merged

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Thanks for the PR!

Deployments, as required, will be available below:

• Frontend