codewhisperer: add action to customization notification (aws#4235)

* codewhisperer: add action to notification when customization is no longer available

* add changelog

Author: zixlin7

.changes/next-release/Feature-9c583c77-3b07-4c5e-b5c2-ba32b9d29963.json

@@ -0,0 +1,4 @@
+{
+	"type": "Feature",
+	"description": "CodeWhisperer: add select customization action to notification"
+}

src/codewhisperer/util/customizationUtil.ts

@@ -316,12 +316,20 @@ export const getAvailableCustomizationsList = async () => {
 // show notification that selected customization is not available, switching back to base
 export const switchToBaseCustomizationAndNotify = async () => {
     await setSelectedCustomization(baseCustomization)
-    void vscode.window.showInformationMessage(
+    const selectCustomizationLabel = localize(
+        'AWS.codewhisperer.customization.notification.selectCustomization',
+        'Select Another Customization'
+    )
+    const selection = await vscode.window.showWarningMessage(
         localize(
             'AWS.codewhisperer.customization.notification.selected_customization_not_available',
             'Selected CodeWhisperer customization is not available. Contact your administrator. Your instance of CodeWhisperer is using the foundation model.'
-        )
+        ),
+        selectCustomizationLabel
     )
+    if (selection === selectCustomizationLabel) {
+        await showCustomizationPrompt()
+    }
 }
 
 const renderDescriptionText = (label: string, isNewCustomization: boolean = false) => {