Inspector: fix a bug where probes could not be created for the same
 script id if such a probe had been previously deleted.
Inspector: remove logging statements from ProbeAgent backend which depend
on the ENABLE(WEB_REPLAY) guard (which probes does not require).
Inspector: fix an early element removal bug in the probe details sidebar panel.
Inspector: fix typos in DebuggerSidebarPanel that affected subtree removal.