chore: feature event formatter md format style (#8222)

https://linear.app/unleash/issue/2-2697/implement-proper-markdown-bold-format-in-feature-event-formatter-md

This is a follow up to #8205,
specifically [this
comment](#8205 (comment))
from @gastonfournier

Implements an easy way to switch between formatting styles in our event
formatter. This enhancement will allow us to generate fully
markdown-formatted event summaries when needed, while preserving the
simplistic markdown formatting currently supported by platforms like
Slack.

Also includes some slight scouting. See comments for details.

src/lib/addons/datadog.ts

@@ -10,7 +10,6 @@ import {
 import {
     type FeatureEventFormatter,
     FeatureEventFormatterMd,
-    LinkStyle,
 } from './feature-event-formatter-md';
 import type { IEvent } from '../types/events';
 import type { IntegrationEventState } from '../features/integration-events/integration-events-store';
@@ -38,10 +37,9 @@ export default class DatadogAddon extends Addon {
 
     constructor(config: IAddonConfig) {
         super(definition, config);
-        this.msgFormatter = new FeatureEventFormatterMd(
-            config.unleashUrl,
-            LinkStyle.MD,
-        );
+        this.msgFormatter = new FeatureEventFormatterMd({
+            unleashUrl: config.unleashUrl,
+        });
         this.flagResolver = config.flagResolver;
     }
 

src/lib/addons/feature-event-formatter-md.test.ts

@@ -575,7 +575,9 @@ const testCases: [string, IEvent][] = [
 
 testCases.forEach(([description, event]) =>
     test(`Should format specialised text for events ${description}`, () => {
-        const formatter = new FeatureEventFormatterMd('unleashUrl');
+        const formatter = new FeatureEventFormatterMd({
+            unleashUrl: 'unleashUrl',
+        });
         const formattedEvent = formatter.format(event);
         expect(formattedEvent).toMatchSnapshot();
     }),