Refactor standard intents declaration to use union types instead of enums

Signed-off-by: Andrei Floricel <andrei.floricel@gmail.com>

Author: andreifloricel

src/intents/Intents.ts

@@ -2,23 +2,31 @@
  * SPDX-License-Identifier: Apache-2.0
  * Copyright FINOS FDC3 contributors - see NOTICE file
  */
-export enum Intents {
-  CreateInteraction = 'CreateInteraction',
-  SendChatMessage = 'SendChatMessage',
-  StartCall = 'StartCall',
-  StartChat = 'StartChat',
-  StartEmail = 'StartEmail',
-  ViewAnalysis = 'ViewAnalysis',
-  ViewChat = 'ViewChat',
-  ViewChart = 'ViewChart',
-  ViewContact = 'ViewContact',
-  ViewHoldings = 'ViewHoldings',
-  ViewInstrument = 'ViewInstrument',
-  ViewInteractions = 'ViewInteractions',
-  ViewMessages = 'ViewMessages',
-  ViewNews = 'ViewNews',
-  ViewOrders = 'ViewOrders',
-  ViewProfile = 'ViewProfile',
-  ViewQuote = 'ViewQuote',
-  ViewResearch = 'ViewResearch',
-}
+
+/**
+ * @see https://fdc3.finos.org/docs/intents/spec#standard-intents
+ */
+export type StandardIntent =
+  | 'CreateInteraction'
+  | 'SendChatMessage'
+  | 'StartCall'
+  | 'StartChat'
+  | 'StartEmail'
+  | 'ViewAnalysis'
+  | 'ViewChat'
+  | 'ViewChart'
+  | 'ViewContact'
+  | 'ViewHoldings'
+  | 'ViewInstrument'
+  | 'ViewInteractions'
+  | 'ViewMessages'
+  | 'ViewNews'
+  | 'ViewOrders'
+  | 'ViewProfile'
+  | 'ViewQuote'
+  | 'ViewResearch';
+
+/**
+ * @see https://fdc3.finos.org/docs/intents/spec
+ */
+export type Intent = StandardIntent | (string & {});