Length error on some logic app definitions

[gooseleggs]

Describe the bug
If the actionName has a length < 5, for example a Tri scope, then you will receive the following error message:

Where-Object : Exception calling "Substring" with "2" argument(s): "Length cannot be less than zero.
Parameter name: length"
At C:\temp\gooseleggs-logicappdocs\logicappdocs\src\Helper.ps1:276 char:76
+ ... ($Actions | Where-Object { $_.RunAfter -eq $(('{0}-False') -f $(($cur ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Where-Object], MethodInvocationException
    + FullyQualifiedErrorId : ArgumentOutOfRangeException,Microsoft.PowerShell.Commands.WhereObjectCommand

This is caused by the line

                # Current error is that there can be an newly created action that does not have a parent property.???
                elseif (($null -ne $currentAction.Parent) -and ($Actions | Where-Object { $_.RunAfter -eq $(('{0}-False') -f $(($currentAction.Parent).Substring(0, ($currentAction.Parent).length - 5))) } )) {

in `helper.ps1. This is because the it is assumed that the length of the string is at least 6 characters long, which is not always the case.

To Reproduce
Steps to reproduce the behavior:
Use a logicApp definition where the actionName is < 5 characters

Expected behavior
Should not error out