feat: DH-18779: Auto-resize column header groups

package.json

@@ -9,6 +9,11 @@
     "node": ">=16",
     "npm": ">=8"
   },
+  "overrides": {
+    "nx": {
+      "@parcel/watcher": "2.4.1"
+    }
+  },
   "scripts": {
     "postinstall": "node ./skip.js || run-s build:necessary",
     "clean:build": "rimraf packages/*/dist packages/*/build",

packages/dashboard-core-plugins/src/panels/IrisGridPanel.tsx

@@ -47,6 +47,7 @@ import {
   type PartitionConfig,
   type IrisGridRenderer,
   type MouseHandlersProp,
+  type GetMetricCalculatorType,
 } from '@deephaven/iris-grid';
 import {
   type RowDataMap,
@@ -158,7 +159,10 @@ export interface OwnProps extends DashboardPanelProps {
   theme?: Partial<IrisGridThemeType> & Record<string, unknown>;
 
   mouseHandlers?: MouseHandlersProp;
+
   renderer?: IrisGridRenderer;
+
+  getMetricCalculator?: GetMetricCalculatorType;
 }
 
 interface StateProps {
@@ -1145,6 +1149,7 @@ export class IrisGridPanel extends PureComponent<
       user,
       renderer,
       settings,
+      getMetricCalculator,
       theme,
     } = this.props;
     const {
@@ -1281,6 +1286,7 @@ export class IrisGridPanel extends PureComponent<
             frozenColumns={frozenColumns}
             theme={theme}
             columnHeaderGroups={columnHeaderGroups}
+            getMetricCalculator={getMetricCalculator}
           >
             {childrenContent}
           </IrisGrid>