[Feature]-[800]:Deprecate form button widget

[hetunandu]

Description

Since we have resetWidget as a trigger function, we can deprecate the form button widget added with every form widget. This needs to be a backwards compatible change.

[riodeuno]

• Update Form widget configs to use normal button widget
• Migrate DSLs to convert all "FORM_BUTTON_WIDGET" to be "BUTTON_WIDGET"
• Migrate all "FORM_BUTTON_WIDGETS" which have the reset action to use the resetWidget action instead
• Jest test for migrations
• Documentation update if needed.

[dilippitchika]

https://www.notion.so/appsmith/Form-Btn-to-Btn-36f43ca84d8046e1b0b62de587f81cc7 @somangshu @riodeuno can you review the PRD once?

This is written with the assumption that we migrate all buttons to be form buttons by default, and only allow form control edits when the button is in a form. Will need design changes if we decide to proceed.

[riodeuno]

@dilippitchika I cannot access the notion doc. Also, here is an updated approach which I had commented in the PR by @techbhavin #5917 (comment)