fix(queries:ecma): proper numeric values

[Rudxain]

#15283 reopened, because the TS org is taking too long.

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Unlike the previous PR, I decided to use smaller regexes that assume literals are valid. This makes them much more readable, at the expense of false positives (and a bit of false negatives).

Now everything is float unless it's clearly a bigint

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To test, create a buffer with content:

1 // float
0x1e1n // int
1e1m // float then var (grammar err, should be float)
1e1n // float then var (grammar err, should be num)
0x1e1m // float then var (grammar err, should be num or float)
1e-1 // float
1e-0 // float
1e0 // float
0x1e-1 // 2 individual floats

and use the zenburn theme, as that theme is the only one that distinguishes the 3 cases by default