Refactor RoomResource to separate loading fragments and room messages #8445

All 773 tests pass, 2 skipped in 24m 16s

    1 files ±0     1 suites ±0 24m 16s ⏱️ +19s
775 tests ±0 773 ✔️ ±0 2 💤 ±0 0 ❌ ±0
780 runs ±0 778 ✔️ ±0 2 💤 ±0 0 ❌ ±0

Results for commit 820d3ba. ± Comparison against earlier commit ac9c3eb.