fix: 规范语法，解决console报错

frontend/src/components/canvas/custom-component/UserView.vue

@@ -264,7 +264,7 @@ export default {
       return this.canvasStyleData.panel.resultCount
     },
     innerPadding() {
-      return this.element.commonBackground.innerPadding || 0
+      return this.element.commonBackground && this.element.commonBackground.innerPadding || 0
     },
     ...mapState([
       'canvasStyleData',

frontend/src/views/chart/components/shape-attr/SizeSelector.vue

@@ -142,7 +142,7 @@
           </el-select>
         </el-form-item>
         <el-form-item v-show="chart.type" :label="$t('chart.space_split')" class="form-item">
-          <el-input-number v-model="sizeForm.spaceSplit" min="0" size="mini" @change="changeBarSizeCase" />
+          <el-input-number v-model="sizeForm.spaceSplit" :min="0" size="mini" @change="changeBarSizeCase" />
         </el-form-item>
       </el-form>
 

frontend/src/views/chart/components/shape-attr/SizeSelectorAntV.vue

@@ -168,7 +168,7 @@
           </el-select>
         </el-form-item>
         <el-form-item v-show="chart.type" :label="$t('chart.space_split')" class="form-item">
-          <el-input-number v-model="sizeForm.spaceSplit" min="0" size="mini" @change="changeBarSizeCase" />
+          <el-input-number v-model="sizeForm.spaceSplit" :min="0" size="mini" @change="changeBarSizeCase" />
         </el-form-item>
       </el-form>