fix(infra): include namespace in application stack id

[cogwirrel]

Reason for this change

In order to better identify AWS resources, we prefix the stack id with the project namespace.

Description of changes

• Prefix stack id with npm scope (this will be monorepo if there's no root package.json scope).
• Updated load:runtime-config task to use the updated stack id
• Updated the dungeon adventure tutorial to reflect the new stack id

Description of how you validated changes

Tested in a local project

Issue # (if applicable)

Fixes #85

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.74%. Comparing base (f2e7dba) to head (db12ae3).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #130   +/-   ##
=======================================
  Coverage   95.74%   95.74%           
=======================================
  Files          42       42           
  Lines        5361     5364    +3     
  Branches      684      684           
=======================================
+ Hits         5133     5136    +3     
  Misses        221      221           
  Partials        7        7           

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