[bugfix] querier datasource, editor SHOW METRICS style error

**Phenomenon and reproduction steps**

none

**Root cause and solution**

none

**Impactions**

none

**Test method**

none

**Affected branch(es)**

- main

**Checklist**

- [ ] Dependencies update required
- [ ] Common bug (similar problem in other repo)

deepflow-querier-datasource/src/QueryEditor.tsx

@@ -1593,7 +1593,7 @@ export class QueryEditor extends PureComponent<Props> {
                               width={28}
                             />
                           </InlineField>
-                          <InlineField className="custom-label" label="SHOW METRICS" labelWidth={14}>
+                          <InlineField className="custom-label" label="SHOW METRICS" labelWidth={14.5}>
                             <div
                               style={{
                                 display: 'flex',