Adds instructions for Oqtane module

Introduces a new file with instructions for customizing GitHub Copilot behavior for Oqtane modules.

Removes the old instruction file.

instructions/oqtane.instructions.md

@@ -0,0 +1,16 @@
+---
+description: 'Instructions for customizing GitHub Copilot behavior for specific technologies and practices'
+---
+
+# Oqtane Module Instructions
+
+## Instructions
+
+- Provide clear, specific guidance for GitHub Copilot
+- Include best practices and conventions
+- Use bullet points for easy reading
+
+## Additional Guidelines
+
+- Any additional context or examples
+-