Update app_location in Azure SWA workflow

Updated the `app_location` in the Azure Static Web Apps workflow file
(`azure-static-web-apps-calm-plant-04da70210.yml`) from an empty string
(`""`) to `"."` to specify the current directory as the app source code
path. This ensures the workflow correctly identifies the app's source
code for building and deploying.

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 ######