Breakpoint resolution is flaky and they seem to delete themselves

[cdamus]

Bug Description:

When I launch an Electron app in debug mode (with a composite launch configuration that debugs both the backend and frontend), breakpoints in frontend code behave erratically:

• they do not show as resolved, even when the debugger actually stops on them
• if I uncheck them in the Breakpoints panel, sometimes they delete themselves instead of just being disabled
• in the Breakpoints panel I can only delete a breakpoint via the context menu. Command+Backspace does nothing
• when I open the Chrome dev tools in my running Electron app, then suddenly Theia IDE shows all my breakpoints as resolved but Theia IDE's debugger doesn't stop on them: Chrome's debugger does as it seems to take over the debugging function. That is surprising to me but maybe it's supposed to work that way; I'm no Chrome/Electron expert

Steps to Reproduce:

Steps cannot add anything meaningful to the description above.

Additional Information

• Operating System: macOS Sequoia 15.3.1
• Theia Version: 1.58.300.206