Speed up Finicky's Chrome profile opens

[technicalpickles]

Summary

• Routes the Chrome profile rules through a small inProfile helper, so they all get the same launch args.
• Adds --no-first-run and --no-default-browser-check to every profile and PWA open, which trims startup work in the throwaway forwarding process Chrome spawns for each routed URL.
• Passes the URL explicitly, since Finicky drops the positional URL once args is set (without it, Chrome opens a blank window).

Test plan

• Click a Google Docs, Datadog, or YouTube link from another app and check it lands in the right profile with the page loaded, not a blank tab.

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