[litegraph] Fix slider value display when custom widget label is present (#1915)

* Update litegraph

* Add playwright test

* Update locales [skip ci]

* Update test expectations [skip ci]

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Co-authored-by: github-actions <github-actions@github.com>

src/locales/zh/nodeDefs.json

@@ -1081,6 +1081,14 @@
       }
     }
   },
+  "DevToolsSimpleSlider": {
+    "display_name": "简单滑块",
+    "inputs": {
+      "value": {
+        "name": "值"
+      }
+    }
+  },
   "DiffControlNetLoader": {
     "display_name": "加载控制网模型（diff）",
     "inputs": {