* Add dynamic key values to secrets.properties in idx template
Update idx template to read local.defaults.properties and
generate key entries in secrets.properties file using the
user's provided API key.
* Fix incorrect variable for key
Update key to be keyVar when writing to secrets.properties
* fix: remove newline from comment
Comment contained newline that made the template read the
filename as a command.
* Add dynamic key values to secrets.properties in idx template
Update idx template to read local.defaults.properties and
generate key entries in secrets.properties file using the
user's provided API key.
* Fix incorrect variable for key
Update key to be keyVar when writing to secrets.properties
