fix(forecast-form): 修复表格选择列宽度问题并添加溢出提示

src/components/forecast-form/index.vue

@@ -96,7 +96,7 @@
             @selection-change="handleSelectionChange"
             :row-key="getRowKey"
           >
-            <el-table-column type="selection" width="44" :selectable="isRowSelectable" />
+            <el-table-column type="selection" width="44" :selectable="isRowSelectable" min-width="120" show-overflow-tooltip />
             <el-table-column prop="code" label="物料编码" min-width="140" />
             <el-table-column prop="cname" label="物料名称" min-width="160" />
             <el-table-column prop="brandName" label="品牌名称" min-width="120" />