Nodes 2.0

### Is there an existing issue for this?

- [x] I have searched the existing issues and checked the recent builds/commits

### What problem are you experiencing?

Issue 1: Nodes Overlap Blocking Options
When multiple nodes are close to each other, opening the option will cause the list to be covered by adjacent nodes.​

Issue 2: Prompt Selection Unsmooth
When quickly selecting text within the prompt with the mouse, only part of the text is often selected, and the subsequent dragging action moves the nodes instead. This may be due to a conflict between mouse dragging behavior and text selection.​​

Issue 3: Copy Limited to Keyboard
Copying and pasting cannot be done using the mouse right-click menu, it only supports Ctrl+C/V keyboard shortcuts.​

Issue 4: Value Adjustment Fails
Adjusting width and height values cannot be done by dragging the mouse left or right for fine-tuning; it can only be adjusted through plus/minus keys or manual input.​

### When does this problem occur?

Always

### How often do you encounter this problem?

Multiple times per day

### How much does this problem affect your workflow?

Minor annoyance

### Current workarounds

Issue 1: Nodes Overlap Blocking Options
Move the blocking parts away.

Issue 2: Prompt Selection Unsmooth
Move the node back and select prompts again at a slower speed.

Issue 3: Copy Limited to Keyboard
Use keyboard input.

Issue 4: Value Adjustment Fails
Use keyboard input.

### Ideas for solutions (Optional)

Issue 1: Nodes Overlap Blocking Options
Make selected nodes automatically come to the top layer.

Issue 2: Prompt Selection Unsmooth
When selecting text, interact only with the text.

Issue 3: Copy Limited to Keyboard
Can add back the old mouse functionality, but not everyone necessarily needs it.

Issue 4: Value Adjustment Fails
Can add back the old mouse functionality, but not everyone necessarily needs it.

### Additional context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-7183-Nodes-2-0-2c06d73d3650814ba184f14001dea736) by [Unito](https://www.unito.io)