chore: add .vscode/mcp.json and .github/instructions/nx.instructions.md to .gitignore (#9325)

Author: manudeli

.gitignore

@@ -30,7 +30,9 @@ stats-hydration.json
 stats.json
 stats.html
 .vscode/settings.json
+.vscode/mcp.json
 .cursor/rules
+.github/instructions/nx.instructions.md
 
 *.log
 *.tsbuildinfo