redesign shared and imported agent cards #129

Job	Run time
Frontend checks and unit tests	6m 8s
Tauri Rust checks (Linux)	2m 4s
Tauri Rust checks (macOS)	1m 59s
Tauri Rust checks (Windows)	4m 44s
Transcript virtualization	2m 44s
Frontend build smoke	1m 57s
	19m 36s

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