url: improve WHATWG URL inspection

• Show all available properties (including searchParams!)
• Colors!
• Respect depth
• Throw an error if this is not an actual URL
• Inspect [context] if showHidden is true

Before:

After:

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• commit message follows commit guidelines

Affected core subsystem(s)

url