ParseError should be handled gracefully

[Jawz84]

ParseExceptions should be handled better, user should be notified what went wrong.

Event time	4/19/2021, 1:18:42 AM (Local time)
Message	Exception while executing function: SyntaxAnalyzer At line:1 char:35 + Gci *.json | %{iex (gc $_.FullName} + ~ Missing closing ')' in expression.
Exception type	System.Management.Automation.ParseException

current behaviour: http500 without any context
expected behaviour: a message to the user what's wrong with their oneliner

cc @1RedOne thanks!

[Jawz84]

Fixed by adding a warning with the actual ParseError in it.