Logpoints are not bound after navigating in tab

[roblourens]

• Debug vscode web UI
• Set a logpoint, see that it works
• Navigate the tab to some other url
• Click "back"
• The logpoints do not work
• If I unset and reset the logpoints, then they work

[roblourens]

Same for normal breakpoints

[connor4312]

Noticed this was slow and made some significant perf improvements in b20937a and cc389d8