o365 calendar sync (#8044)

Implemented:

* Account Connect
* Calendar sync via delta ids then requesting single events


I think I would split the messaging part into a second pr - that's a
step more complex then the calendar :)

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Co-authored-by: bosiraphael <raphael.bosi@gmail.com>

packages/twenty-front/src/modules/workspace/types/FeatureFlagKey.ts

@@ -16,4 +16,5 @@ export type FeatureFlagKey =
   | 'IS_SSO_ENABLED'
   | 'IS_UNIQUE_INDEXES_ENABLED'
   | 'IS_ARRAY_AND_JSON_FILTER_ENABLED'
+  | 'IS_MICROSOFT_SYNC_ENABLED'
   | 'IS_ADVANCED_FILTERS_ENABLED';