Expand `trap` to cover more signals

[philipnickel]

File: Core/Conda/install/install_macOS.sh:28-29

The current trap 'rm -rf "$TMPDIR_PATH"' EXIT only fires on normal exit. Confirm what signals should be caught (INT, TERM, HUP) so the temp directory is cleaned up on Ctrl-C or terminal disconnect. Note: SIGKILL cannot be trapped by design — document that caveat. Consider trap 'rm -rf "$TMPDIR_PATH"' EXIT INT TERM HUP.

Nick > "This will fail, why? ;) Likely we should also add SIGKILL, SIGINT"

[zerothi]

trap 'rm -rf "$TMPDIR_PATH"' EXIT INT TERM HUP

has another error, that's got to do with the difference between ' and " in bash. :) Sorry for not telling you :)