Improve “Known Breakages” component UI

[mayan-000]

Description

This PR updates UI in the known breakages section

• [x] Remove the box UI when an accordion item is expanded
• [x] Remove the separator line after the last item
• [x] Remove the bullets/feature list mentioned under GIS & GSI
• [x] Remove the full-stops after each detection title
• [x] Shorten the detection title text and make it standardized
• [x] Make the CTA under each detection more informative - Example: To inquire further about the same, please visit the support forum

Testing Instructions

• Click on each accordion item to expand it.
• Verify that the box UI surrounding the expanded item disappears.
• Scroll through the list of items.
• Check that there is no separator line after the last item in the list.
• Navigate to the GIS & GSI section.
• Check that the bullets or feature list items are not visible.
• Review each detection title.
• Confirm that there are no full-stops (periods) at the end of the titles.
• Verify that the titles are shortened to a standardized length.
• Verify that the Call to Action (CTA) beneath each detection is more informative.

Screenshot/Screencast

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Checklist

• [x] I have thoroughly tested this code to the best of my abilities.
• [x] I have reviewed the code myself before requesting a review.
• [x] This code is covered by unit tests to verify that it works as intended.
• [x] The QA of this PR is done by a member of the QA team (to be checked by QA).

Fixes #642