Cosmos DB account must be lowercase

[ntrogh]

Purpose

• Update the deployment script to ensure the generated Cosmos DB account name is only using lowercase.
  Several users have gotten a 503 error when loading the sample application because the Cosmos DB could not be created as a result of incorrect naming.

Does this introduce a breaking change?

[ ] Yes
[X] No

Pull Request Type

What kind of change does this Pull Request introduce?

• Update the sample application deployment script to force the Cosmos DB account name to be lowercase.

[X] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• Run deploymentscript.ps1 and provide an uppercase web app name as input.
• Verify that the Cosmos DB account is successfully created.

Other Information