fix: hide 0 positions length boolean in document title

src/routes/index.tsx

@@ -127,7 +127,7 @@ export default function Home() {
 
     const titleMemo = createMemo(
       () =>
-        (state.positions.length > 0 && `(${state.positions.length}) `) +
+        (state.positions.length > 0 ? `(${state.positions.length}) ` : "") +
         "Räppli" +
         (state.project.projectNumber.length
           ? ` - ${state.project.projectNumber}`