Update current sizing policy when plot policy changes

Author: lionel-

src/vs/workbench/contrib/positronPlots/browser/positronPlotsService.ts

@@ -771,7 +771,6 @@ export class PositronPlotsService extends Disposable implements IPositronPlotsSe
 	 * @param fireEvents Whether to fire events for this plot client.
 	 */
 	private registerPlotClient(plotClient: PlotClientInstance, fireEvents: boolean) {
-
 		// Add to our list of plots
 		this._plots.push(plotClient);
 
@@ -820,6 +819,10 @@ export class PositronPlotsService extends Disposable implements IPositronPlotsSe
 		plotClient.register(plotClient.onDidShowPlot(() => {
 			selectPlot();
 		}));
+
+		plotClient.register(plotClient.onDidChangeSizingPolicy((policy) => {
+			this.selectSizingPolicy(policy.id);
+		}));
   }
 
 	/**