[HIG-2269] ensure invalid DOM nesting doesn't crash rrweb

[Vadman97]

Replaying an app with invalid DOM nesting may crash rrweb.
Print console warning instead of crashing.

[linear]

HIG-2269 "Uncaught HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method."

#bugs repro: load original live session, jump back in time (paused), enable live session again

index.js:1 DOMException: Failed to execute 'appendChild' on 'Node': This node type does not support this method.
    at e.restoreRealParent (https://app.highlight.run/static/js/3.b33474bc.chunk.js:2:645458)
    at https://app.highlight.run/static/js/3.b33474bc.chunk.js:2:615318
    at Map.forEach (<anonymous>)
    at https://app.highlight.run/static/js/3.b33474bc.chunk.js:2:615286
    at https://app.highlight.run/static/js/3.b33474bc.chunk.js:2:568673
    at Array.map (<anonymous>)
    at Object.emit (https://app.highlight.run/static/js/3.b33474bc.chunk.js:2:568656)
    at play (https://app.highlight.run/static/js/3.b33474bc.chunk.js:2:650423)
    at https://app.highlight.run/static/js/3.b33474bc.chunk.js:2:566815
    at Array.forEach (<anonymous>)

can't repro this locally: could this be due to chunking? eg. turning off live mode loads chunk from before, then resuming live mode somehow breaks. no, live mode session isn't chunked until it's processed