Updated Collapse in Activities component to show tx details when clicked on tx hash

[MonikaCat]

Description

Fixes #

Checklist

• [x] Targeted PR against correct branch.
• [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• [x] Run meteor npm run lint
• [x] Added an entry to the CHANGELOG.md file.
• [x] Re-reviewed Files changed in the Github PR explorer.

[MonikaCat]

Right! I just updated the code to handle all custom messages, showing the JSON message when clicked on the tx hash