Style: Enforce braces around if blocks and loops

Using clang-tidy's `readability-braces-around-statements`.
https://clang.llvm.org/extra/clang-tidy/checks/readability-braces-around-statements.html

editor/debugger/editor_debugger_node.h

@@ -70,8 +70,9 @@ private:
 		int line = 0;
 
 		bool operator<(const Breakpoint &p_b) const {
-			if (line == p_b.line)
+			if (line == p_b.line) {
 				return source < p_b.source;
+			}
 			return line < p_b.line;
 		}