style(dashboard): Refine modal, tooltip, and preview content accordion

[rifont]

What changed? Why was the change needed?

• Refine pause workflow modal copy and styling
• Move copy-text tooltip to right by default
• Stop opening the preview payload JSON accordion when no payload data is present in content

Screenshots

Updated pause workflow modal

Updated delete step modal

Moved click to copy tooltip to the right

still valid collision detection elsewhere

Demo of stop opening the preview payload JSON accordion when no payload data is present in content

https://github.com/user-attachments/assets/218dc0f9-8421-4650-bcbd-b71025dae959

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