Meta issue for tracking screenshot and filmstrip related issues.

Screenshots

• De-duplicate images De-duplicate images synthetics#285
• Re-assemble chunked synthetics images [Uptime] Re-assemble chunked synthetics images kibana#100474
• Document how to retain data with fleet integration and ILM policies Document how to retain data ILM policies synthetics#286
• Flexible screenshot functionality [Heartbeat] Flexible screenshot functionality beats#25201

Filmstrips

• Filmstrip for Synthetic monitors [Uptime] Filmstrip for Synthetic monitors kibana#83816
  • Depends on Design https://github.com/elastic/observability-design/issues/5
  • Depends on Ability to determine precise y-axis mouse position Ability to determine precise y-axis mouse position on the stacked bar chart and represent it in the crosshair label elastic-charts#906
  • Depends on Capture filmstrip images Capture filmstrip images synthetics#250 (note there is a 450 frame limit build into Chrome that may limit capabilities)