### 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
SuiteNode *else_block = alloc_node<SuiteNode>();
		else_block->parent_function = current_function;
		else_block->parent_block = current_suite;
		SuiteNode *previous_suite = current_suite;
		current_suite = else_block;
		IfNode *elif = parse_if("elif");
		else_block->statements.push_back(elif);
		complete_extents(else_block);
		n_if->false_block = else_block;
		current_suite = previous_suite;
	} else if (match(GDScriptTokenizer::Token::ELSE)) {
		consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "else".)");
		n_if->false_block = parse_suite(R"("else" block)");
	}
	complete_extents(n_if);
	if (n_if->false_block != nullptr && n_if->false_block->has_return && n_if->true_block->has_return) {
		current_suite->has_return = true;
	}
	if (n_if->false_block != nullptr && n_if->false_block->has_continue) {
		current_suite->has_continue = true;
	}
	return n_if;
}
GDScriptParser::MatchNode *GDScriptParser::parse_match() {
	MatchNode *match = alloc_node<MatchNode>();
	match->test = parse_expression(false);
	if (match->test == nullptr) {
		push_error(R"(Expected expression to test after "match".)");
	}
	consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "match" expression.)");