Fuzz corpus management - Add more details to corpus management page - crash % & coverage

Problem to solve

Show more relevant info to help the user understand the corpus more and decide to choose to add/edit or remove corpus

Proposal

Design figma:https://www.figma.com/file/eSIeuIPKFwEDs4X9ky2O5E/Corpus-Registry?node-id=661%3A0

• Tell the user how many crashes have found with this corpus management
• Tell the user the coverage rate of this corpus when it last run

For designs: See attachments on #268004 (closed)

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