Allow stack name to be omitted from alarm names

[mrthehud]

What did you implement:

We have a use case that requires us to not include the stack name in the prefix.

How did you implement it:

By templating it, we allow ourselves to remove it without breaking functionality for other cases.

How can we verify it:

Todos:

• [X] Write tests
• [x] Write documentation
• [X] Fix linting errors
• [x] Provide verification config/commands/resources