### Godot version

v4.0.stable.official [92bee43ad]

### System information

Steam OS Holo, Steam Deck

### Issue description

Using a `[br]` tag at the end of a line in a documentation comment adds an additional space at the beginning of the following line:

![image](https://user-images.githubusercontent.com/857660/236700815-c78a317f-cdf8-4f3c-8489-41f9559ffe6d.png)


### Steps to reproduce

The script below is what I used to generate the image above:

```gdscript
class_name Test
extends Node

## High-level description
##
## First line of detail.[br]
## Second line of detail.
```

Removing the space between `##` and `Second` doesn't change the output.

The only workaround I've found so far is to remove the linebreak after the `[br]` tag, but this makes the documentation comments harder to read in the editor:

```gdscript
class_name Test
extends Node

## High-level description
##
## First line of detail.[br]Second line of detail.
```

### Minimal reproduction project

N/A
if (current.get_identifier() == "get" || current.get_identifier() == "set") {
						return parse_property(variable, false);
					}
				}
			}
			
			variable->datatype_specifier = parse_type();
		}
	}
	if (match(GDScriptTokenizer::Token::EQUAL)) {
		
		variable->initializer = parse_expression(false);
		if (variable->initializer == nullptr) {
			push_error(R"(Expected expression for variable initial value after "=".)");
		}
		variable->assignments++;
	}
	if (p_allow_property && match(GDScriptTokenizer::Token::COLON)) {
		if (match(GDScriptTokenizer::Token::NEWLINE)) {
			return parse_property(variable, true);
		} else {
			return parse_property(variable, false);
		}
	}
	complete_extents(variable);
	end_statement("variable declaration");
	return variable;
}
GDScriptParser::VariableNode *GDScriptParser::parse_property(VariableNode *p_variable, bool p_need_indent) {