Update app_location in Azure SWA workflow

Changed the `app_location` in `azure-static-web-apps-calm-plant-04da70210.yml`
from `"."` to `"/"` to explicitly specify the root directory
as the app's source code path. This improves clarity and aligns
with the app's build process requirements.

Author: gvreddy04

.github/workflows/azure-static-web-apps-calm-plant-04da70210.yml

@@ -29,7 +29,7 @@ jobs:
           ###### Repository/Build Configurations - These values can be configured to match your app requirements. ######
           # For more information regarding Static Web App workflow configurations, please visit: https://aka.ms/swaworkflowconfig
           #app_location: "Client" # App source code path
-          app_location: "." # App source code path
+          app_location: "/" # App source code path
           #api_location: "Api" # Api source code path - optional
           output_location: "wwwroot" # Built app content directory - optional
           ###### End of Repository/Build Configurations ######