canvasSetting open시 치수 날아가는 현상 수정

src/hooks/option/useCanvasSetting.js

@@ -186,9 +186,7 @@ export function useCanvasSetting() {
     }
     const { column } = corridorDimension
     const lengthTexts = canvas.getObjects().filter((obj) => obj.name === 'lengthText')
-    lengthTexts.forEach((obj) => {
-      obj.set({ text: '' })
-    })
+
     switch (column) {
       case 'corridorDimension':
         lengthTexts.forEach((obj) => {