Enhance catalog entry and code mode RHS panel to be able to create new catalog entry #1550

All 732 tests pass, 2 skipped in 21m 53s

    1 files ±0     1 suites ±0 21m 53s ⏱️ +15s
734 tests ±0 732 ✔️ ±0 2 💤 ±0 0 ❌ ±0
739 runs ±0 737 ✔️ ±0 2 💤 ±0 0 ❌ ±0

Results for commit f5e5845. ± Comparison against earlier commit c6c26ff.