defaults bugfix

"leashDefaults_" is not a valid ScriptName in the current settings
format (does not exist), so the script's default list is never filled,
causing revert to oc defaults on any default button usage (chain, etc),
regardless of settings in NC. Removed all reference to the variable, as
it is only used for that & repaired particle (current used) script to
properly establish it's defaults.
Merge pull request #224 from JoyStipe/main

defaults bugfix