feat: Add floor plan page and component

src/app/[locale]/floor-plan/page.jsx

@@ -0,0 +1,5 @@
+import FloorPlan from '@/components/floor-plan/FloorPlan'
+
+export default function floorPlanPage() {
+  return <FloorPlan />
+}

src/components/floor-plan/FloorPlan.jsx

@@ -0,0 +1,7 @@
+export default function FloorPlan() {
+  return (
+    <>
+      <h1>도면 작성 페이지</h1>
+    </>
+  )
+}