Prepare MCP release with new copy and announcement

package.json

@@ -2,7 +2,7 @@
 	"name": "claude-dev",
 	"displayName": "Cline (prev. Claude Dev)",
 	"description": "Autonomous coding agent right in your IDE, capable of creating/editing files, running commands, using the browser, and more with your permission every step of the way.",
-	"version": "2.1.6",
+	"version": "2.2.0",
 	"icon": "assets/icons/icon.png",
 	"galleryBanner": {
 		"color": "#617A91",
@@ -33,6 +33,7 @@
 		"cline",
 		"claude",
 		"dev",
+		"mcp",
 		"openrouter",
 		"coding",
 		"agent",