Calculator Settings overrides query parameters

Description

When query parameters are included in the URL, they are overridden by the Calculator Settings plugin. This is usually not what you would expect to happen.

Steps to reproduce

1. Enable "Core > Calculator Settings"
2. Uncheck "Show performance meter"
3. Navigate to https://www.desmos.com/calculator?showPerformanceMeter
4. Performance meter is not visible

Potential solutions

• Query params take priority over calculator settings (checking and unchecking the box while the param is in the URL would do nothing)
• Disable the checkbox when the query param is present, and show a tooltip explaining why it's disabled
• Query params take priority over Calculator Settings initially, but changing the state in Calculator Settings would cause it to then update the value

Whichever solution we go with, the presence of query params shouldn't persist changes to Calculator Settings, only override them

Reproduce the issue with Calculator Settings enabled, "Show performance meter" unchecked, and the showPerformanceMeter query parameter in the URL. Trace the Calculator Settings and query-parameter handling; done means query parameters override the setting without persisting changes to Calculator Settings.