Mobile Web App missing action buttons (like, dislike, copy, regenerate, edit) which are present on PC

### Self Checks

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### Dify version

v.1.17.0

### Cloud or Self Hosted

Self Hosted (Source), Self Hosted (Docker), Cloud

### Steps to reproduce

1.Publish a Dify web application (Chatflow or Agent or Chat based).

2.Open the published web app URL on a mobile device (e.g., iPhone with Safari, or Android with Chrome).

3.Send a message to start a conversation.

4.Observe the message bubbles from both the user and the AI assistant.

### ✔️ Expected Behavior

On mobile devices, the action buttons (like, dislike, copy, regenerate for AI messages; edit and copy for user messages) should be visible and accessible, similar to the desktop (PC) experience. The web app is expected to adapt to different screen sizes.

### ❌ Actual Behavior

On mobile devices, these action buttons are missing entirely from both the AI's response messages and the user's input messages. However, when accessing the exact same web app URL from a PC browser, all buttons are displayed and function correctly.

AI Message Missing:

👍 Like (Thumbs up)

👎 Dislike (Thumbs down)

📋 Copy

🔄 Regenerate

User Message Missing:

✏️ Edit

📋 Copy

Reproduce the published web app on a mobile browser, then compare the message bubbles with their desktop rendering to locate the responsive action controls. Confirm that AI like, dislike, copy, and regenerate actions and user edit and copy actions are visible and functional on mobile without changing the desktop behavior.

Written by the indexing model from the issue text.