* set pipe to empty string on empty closure
* fix missing parser flags and scope
* add closure serializing
* add enum provider function to slash command arguments
* add enum providers for /bg, /ask, and /go
* fix index out of bounds returning undefined
* keep whitespace as is in mixed unnamed args (string+closure)
* add _hasUnnamedArgument to named arguments dictionary
* allow /var key=x retrieval
* add enum provider to /tag-add
* fix typo (case)
* add option to make enum matching optional
* add executor to enum provider
* change /tag-add enum provider to only show tags not already assigned
* add enum provider to /tag-remove
* fix name enum provider excluding groups
* remove void from slash command callback return types
* Lint undefined and null pipes
* enable pointer events in chat autocomplete
* fix type hint
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Co-authored-by: LenAnderson <Anderson.Len@outlook.com>
Co-authored-by: Cohee <18619528+Cohee1207@users.noreply.github.com>