chore: 🗑️ remove markdownlint from recommendations (#176)

## Description

Since we don't use it.

## Reviewer Focus

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This PR needs a quick review.

Author: signekb

.vscode/extensions.json

@@ -5,7 +5,6 @@
 	"recommendations": [
 		"jebbs.plantuml",
 		"batisteo.vscode-django",
-		"DavidAnson.vscode-markdownlint",
 		"donjayamanne.githistory",
 		"felipecaputo.git-project-manager",
 		"GitHub.vscode-pull-request-github",
@@ -24,4 +23,4 @@
 	],
 	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
 	"unwantedRecommendations": []
-}
+}