Replace all instead of just replace

frontend/sync-client/src/utils/line-and-column-to-position.ts

@@ -13,7 +13,7 @@ export function lineAndColumnToPosition(
 	line: number,
 	column: number
 ): number {
-	const lines = text.replace("\r", "").split("\n");
+	const lines = text.replaceAll("\r", "").split("\n");
 
 	if (line >= lines.length) {
 		throw new Error(`Line number ${line} is out of range.`);

frontend/sync-client/src/utils/position-to-line-and-column.test.ts

@@ -43,6 +43,28 @@ describe("positionToLineAndColumn", () => {
 		});
 	});
 
+	test("with multiple carriage returns", () => {
+		// Test that all \r characters are removed, not just the first one
+		const text = "line1\r\nline2\r\nline3\r\n";
+
+		assert.deepStrictEqual(positionToLineAndColumn(text, 0), {
+			line: 0,
+			column: 0
+		});
+
+		// Position 6 = start of 'line2' after all \r removed
+		assert.deepStrictEqual(positionToLineAndColumn(text, 6), {
+			line: 1,
+			column: 0
+		});
+
+		// Position 12 = start of 'line3' after all \r removed
+		assert.deepStrictEqual(positionToLineAndColumn(text, 12), {
+			line: 2,
+			column: 0
+		});
+	});
+
 	test("handles empty input", () => {
 		assert.deepStrictEqual(positionToLineAndColumn("", 0), {
 			line: 0,

frontend/sync-client/src/utils/position-to-line-and-column.ts

@@ -14,7 +14,7 @@ export function positionToLineAndColumn(
 		throw new Error("Position cannot be negative");
 	}
 
-	text = text.replace("\r", "");
+	text = text.replaceAll("\r", "");
 
 	if (
 		position >