Loosen Meta Strings order requirement

[omar]

this title="fib.sh" showLineNumbers /index/#v works but this /index/#v title="fib.sh" showLineNumbers doesn't.

In general showLineNumbers does not work when there's a highlighted group chars and and the highlighted group chars does not come after showLineNumbers.

• go through all permutations of possible meta strings,
• note down the orderings that don't work,
• fix or if not possible add specific comment / "heads up" in docs