[Issue] Template meta data missing

[kristenwomack]

Background
In our telemetry, we track the usage of the azd templates: number of attempted deployments, number of successful deployments, etc. This helps us know what the most popular azd templates developers want are. The template name in the azure.yaml is the telemetry hook we need to measure this. When a template is missing the metadata attribute in the azure.yaml file, is grouped into a telemetry category called "other" and we are not able to know how popular that particular template is.

The issue
When running the query org:azure-samples path:**/azure.yaml NOT content:"metadata" in the Azure Samples repo, we discovered that 30 azure.yaml files do not have the template metadata attribute in the azure.yaml file.

Next steps:

1. Investigate each of these repos to see if they are an azd template missing the metadata
2. If yes, then add
   metadata:
template: <template-name>
3. Submit a PR to the author

Outcome we want is for every azd templated application to have telemetry hooks with the template name listed in the metadata attribute of the azure.yaml file.