Symbol controller name causes exception

[stevegeek]

undefined method 'split' for an instance of Symbol

[vident (78c8fed39eca) lib/vident/stimulus_controller.rb:38:in 'Vident::StimulusController#parse_arguments'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/stimulus_attribute_base.rb:11:in 'Vident::StimulusAttributeBase#initialize'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/stimulus_attributes.rb:32:in 'Class#new'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/stimulus_attributes.rb:32:in 'Vident::StimulusAttributes#stimulus_controller'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/stimulus_attributes.rb:43:in 'block in Vident::StimulusAttributes#stimulus_controllers'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/stimulus_attributes.rb:42:in 'Array#map'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/stimulus_attributes.rb:42:in 'Vident::StimulusAttributes#stimulus_controllers'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/component_attribute_resolver.rb:80:in 'Vident::ComponentAttributeResolver#prepare_stimulus_collections'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/component_attribute_resolver.rb:9:in 'Vident::ComponentAttributeResolver#prepare_component_attributes'](http://localhost:3700/tts_jobs/29#)
[vident (78c8fed39eca) lib/vident/component.rb:70:in 'Vident::Component#after_initialize'](http://localhost:3700/tts_jobs/29#)```

[stevegeek]

Fixed in b42e912. stimulus_controllers: prop and stimulus_controllers(...) helper now accept Symbol paths (:my_controller, :"admin/users"). Will ship in the next beta.