### 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 (key == nullptr) {
						push_error(R"(Expected expression as key for dictionary pattern.)");
					}
					if (match(GDScriptTokenizer::Token::COLON)) {
						
						PatternNode *sub_pattern = parse_match_pattern(p_root_pattern != nullptr ? p_root_pattern : pattern);
						if (sub_pattern == nullptr) {
							continue;
						}
						if (pattern->rest_used) {
							push_error(R"(The ".." pattern must be the last element in the pattern dictionary.)");
						} else if (sub_pattern->pattern_type == PatternNode::PT_REST) {
							push_error(R"(The ".." pattern cannot be used as a value.)");
						} else {
							pattern->dictionary.push_back({ key, sub_pattern });
						}
					} else {
						
						pattern->dictionary.push_back({ key, nullptr });
					}
				}
			} while (match(GDScriptTokenizer::Token::COMMA));
			consume(GDScriptTokenizer::Token::BRACE_CLOSE, R"(Expected "}" to close the dictionary pattern.)");
			break;
		}
		default: {
			
			ExpressionNode *expression = parse_expression(false);
			if (expression == nullptr) {
				push_error(R"(Expected expression for match pattern.)");