Improve test names and prevent some solutions

[SleeplessByte]

Changes:

• Whilst everyone is using typeof correctly, the newer tests prevent you from coercing incorrectly.
• It also tests numeric strings correctly (to prevent incorrect regex solutions), adds negative numbers, and numbers that fit in BigInt but not Number (to force isFinite).
• I also added tests to prevent people from comparing object.prototype (to force instanceof), by adding branded check to ElectronicDevice.
• Added some fake arrays to prevent instanceof Array.
• Finally, increased the tests for the final few tasks, particularly checking type: null so people cannot do !object.type.

[SleeplessByte]

@quintuple-mallard just pinging you in case you're interested!