@microsoft/microsoft-graph-client should be a dependency, not devDependency

[hkbertoson]

Bug Description

Problem:
@microsoft/microsoft-graph-client is listed in devDependencies but is imported at runtime in src/index.ts:

import {
  TokenCredentialAuthenticationProvider,
  type TokenCredentialAuthenticationProviderOptions,
} from "@microsoft/microsoft-graph-client/authProviders/azureTokenCredentials";

Since it's a devDependency, it won't be installed when consumers npm install @chat-adapter/teams. It only works currently because botbuilder happens to bring it in transitively.
Fix:
Move @microsoft/microsoft-graph-client from devDependencies to dependencies in package.json.

Steps to Reproduce

N/A

Expected Behavior

N/A

Actual Behavior

N/A

Code Sample

Chat SDK Version

Latest

Node.js Version

No response

Platform Adapter

Microsoft Teams

Operating System

macOS

Additional Context

No response