fix(jupyterlab): update @jupyter-widgets/base constraint for ipywidgets 8.x

The JupyterLab extension fails to load with ipywidgets 8.x because
the version constraint ">2 <5" rejects @jupyter-widgets/base 6.x
which is provided by ipywidgets 8.x (the current stable release).

Error in browser console:
  Unsatisfied version 6.0.11 from @jupyter-widgets/jupyterlab-manager
  of shared singleton module @jupyter-widgets/base (required >=2 not(^2) <5)

This causes widgets to fail with:
  TypeError: undefined is not iterable

Update the constraint from ">2 <5" to ">2 <7" to support both
ipywidgets 7.x (@jupyter-widgets/base 4.x) and ipywidgets 8.x
(@jupyter-widgets/base 6.x).

Fixes compatibility with:
- JupyterLab 4.x
- ipywidgets 8.x (current stable)

Signed-off-by: Ryan Malloy <ryan@supported.systems>

Author: rsp2k

packages/jupyterlab/package.json

@@ -29,7 +29,7 @@
         "@perspective-dev/viewer": "workspace:",
         "@perspective-dev/client": "workspace:",
         "@perspective-dev/server": "workspace:",
-        "@jupyter-widgets/base": ">2 <5",
+        "@jupyter-widgets/base": ">2 <7",
         "@jupyterlab/application": ">2 <5",
         "@lumino/application": "<3",
         "@lumino/widgets": "<3"

pnpm-workspace.yaml

@@ -24,7 +24,7 @@ catalog:
     # Dependencies
     "@d3fc/d3fc-chart": "5.1.9"
     "@d3fc/d3fc-element": "6.2.0"
-    "@jupyter-widgets/base": ">2 <5"
+    "@jupyter-widgets/base": ">2 <7"
     "@jupyterlab/application": ">2 <5"
     "@lumino/application": "<3"
     "@lumino/widgets": "<3"