externalize secrets

[cicorias]

use local.properties

by adding some values to the root local.properties, which is NOT committedf:

the first item sdk.dir is auto added by android studio.

## This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration.
#
# Location of the SDK. This is only used by Gradle.
# For customization when using a Version Control System, please read the
# header note.
#Mon Aug 21 05:54:26 EDT 2023
sdk.dir=C\:\\Users\\scicoria\\AppData\\Local\\Android\\Sdk
dotnet.version=7.0.10
speech.key=???????
speech.region=westus3