fix: rich table block

[stephiescastle]

Checklist

• Include a description of your pull request and instructions for the reviewer to verify your work.
• Link to the issue if this PR is issue-specific.
• Create/update the corresponding story if this includes a UI component.
• Create/update documentation. If not included, tell us why.
• List the environments / browsers in which you tested your changes.
• Tests, linting, or other required checks are passing.
• PR has an informative and human-readable title
  • PR titles are used to generate the change log in releases; good ones make that easier to scan.
  • PRs will be broadly categorized in the change log, but for even easier scanning, consider prefixing with a component name or other useful categorization, e.g., "BaseButton: fix layout bug", or "Storybook: Update dependencies".
• PR has been tagged with a SemVer label and a general category label, or skip-changelog.
  • These tags are used to do the aforementioned broad categorization in the change log and determine what the next release's version number should be.
  • Release Drafter will attempt to do the category labeling for you! Please double-check its work.

Description

Addresses feedback:

• https://github.com/nasa-jpl/www/issues/171#issuecomment-2353636350

Changes:

• Adjusts min-width on table cells for a more flexible layout
• moves caption in rich table to below the overflow scrollbar
• Changes table header color for EDU to teal-dark
• Adjusts CSS to rich table is full width in EDU student project steps

Instructions to test

1. make vue-storybook
2. Rich table story: http://localhost:6006/?path=/story/components-blocks-blockrichtable--base-story&globals=theme:ThemeEdu
3. In a student project step: http://localhost:6006/?path=/story/templates-edu-pageedustudentproject--base-story&globals=theme:ThemeEdu

Tested in the following environments/browsers:

Operating System

• macOS
• iOS
• iPadOS
• Windows

Browser

• Chrome
• Firefox ESR
• Firefox
• Safari
• Edge