New Magento2 Controller. Add a placeholder.

[Iamwade]

Patch 4.3.0 adds the ability to add placeholders to the input field.
#938

We need to add placeholders to the creation of a new controller.

Action Name: Directory name
Controller Name: Class name

@bohdan-harniuk Are you agree with these placeholders?

[m2-assistant]

Hi @Iamwade. Thank you for your report.
To speed up processing of this issue, make sure that you provided sufficient information.

Add a comment to assign the issue: @magento I am working on this

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[Iamwade]

@magento I am working on this

[bohdan-harniuk]

Related to the #598

[SilinMykola]

@magento I am working on this