Enabled Azure Arc data controller upgrade for direct and indirect mode (#19060)

* Fixed a connect to Server typo

* Added upgrade tab with description and title. Table is still stuck loading.

* Renamed backups to upgrades.

* Removed loading icon

* Table appearing and not stuck loading

* Saving for now to upgrade arc and azcli versions

* Added upgrade confirmation dialog, populated dummy data and added upgrade apis.

* Added parsing of versions and current version from listupgrades

* Upgrade itself not working, but added upgrade as a part of azure cli api.

* Table now populating with release dates and version numbers. Upgrade button only shows for appropriate cells. Upgrade done but no release version column.

* Changed text using PM advice

* Removed comments from controllerUpgrades.ts

* Replaced code in upgradecontroller.ts and made refresh work

* Removed one call to handleTablesUpdated

* Removed some code in upgradeControllers.ts and it still works

* removing more code for pitr refresh from upgradeController.ts

* Created and used UpgradeModel even though it is empty

* Added upgrademodel

* PR comments addressed

Co-authored-by: Candice Ye <canye@microsoft.com>

extensions/arc/src/models/miaaModel.ts

@@ -29,6 +29,7 @@ export type PITRModel = {
 	latestPitr: string,
 	destDbName: string
 };
+export type UpgradeModel = {};
 
 export const systemDbs = ['master', 'msdb', 'tempdb', 'model'];
 export class MiaaModel extends ResourceModel {