### Godot version

v4.0.beta10.official [d0398f62f]

### System information

Windows 22H2, Compatibility, GeForce GTX 550 Ti

### Issue description

Multiple lines of error messages are copied without line breaks:
The script editor's error panel shows:
```
Line 6:Expected parameter name.
Line 6:Expected closing ")" after function parameters.
Line 6:Expected ":" after function declaration.
```
But selecting and copying them `ctrl c`, copies them without line breaks:
```
Line 6:Expected parameter name.Line 6:Expected closing ")" after function parameters.Line 6:Expected ":" after function declaration.
```


### Steps to reproduce

- start Godot
- open the attached project
- open the script `Node2D.gd`
The status bar shows an error message.
- click on the red circle with an x in it, and the number 3 to the right of the circle.
The script editor's error panel shows three messages:
>Line 6:Expected parameter name.
Line 6:Expected closing ")" after function parameters.
Line 6:Expected ":" after function declaration.

- select all three lines, and copy them `ctrl c`
- in the script editor, click on the empty line 12 to place the cursor there.
- paste `ctrl v`

### Expected
The copied lines should be pasted on three lines, as they appeared in the error panel.

### Observed
There are no line breaks, they appear on the same line:
```
Line 6:Expected parameter name.Line 6:Expected closing ")" after function parameters.Line 6:Expected ":" after function declaration.
```


### Minimal reproduction project

[issue, error messages copied without line breaks.zip](https://github.com/godotengine/godot/files/10361376/issue.error.messages.copied.without.line.breaks.zip)

NOT_PARSED,
				RGBA_PARAMETER, 
				COLOR_NAME, 
			} expression_pattern = NOT_PARSED;
			for (int i = col; i < line.length(); i++) {
				if (line[i] == '(') {
					if (expression_pattern == NOT_PARSED) {
						begin = i;
						expression_pattern = RGBA_PARAMETER;
					} else {
						
						expression_pattern = NOT_PARSED;
						break;
					}
				} else if (expression_pattern == RGBA_PARAMETER && line[i] == ')' && end < 0) {
					end = i + 1;
					break;
				} else if (expression_pattern == NOT_PARSED && line[i] == '.') {
					begin = i;
					expression_pattern = COLOR_NAME;
				} else if (expression_pattern == COLOR_NAME && end < 0 && (line[i] == ' ' || line[i] == '\t')) {
					
					continue;
				} else if (expression_pattern == COLOR_NAME && !(line[i] == '_' || ('A' <= line[i] && line[i] <= 'Z'))) {
					end = i;