Refactor OrgChangeNotifier and Copilot Notification

[amitjoshi438]

This pull request includes several changes to the activate function in the src/client/extension.ts file, focusing on initializing the OrgChangeNotifier instance and managing the Copilot notification. The most important changes include the initialization of the OrgChangeNotifier, handling the Copilot notification, and ensuring that the workspace folders are correctly processed.

Initialization and Notifications:

• Added initialization of the OrgChangeNotifier instance with pacTerminal.getWrapper(). (src/client/extension.ts, src/client/extension.tsR190-R200)
• Introduced a flag copilotNotificationShown to ensure the Copilot notification is shown only once. (src/client/extension.ts, src/client/extension.tsR190-R200)
• Moved the showNotificationForCopilot call to after the ECS initialization and workspace check. (src/client/extension.ts, src/client/extension.tsL246-R262)

Workspace Handling:

• Ensured that workspaceFolders are mapped correctly and handled within the function. (src/client/extension.ts, [1] [2]
• Removed redundant code and adjusted the logic for checking the presence of the portal configuration folder in the workspace. (src/client/extension.ts, [1] [2]