feat: Add JDBC module, and redesign JIT and JMM theory pages with enhanced UI and detailed content.

Author: PramithaMJ

src/features/jdbc/index.ts

@@ -0,0 +1,3 @@
+export { JDBCModule } from './JDBCModule';
+export { JDBCTheory } from './JDBCTheory';
+export { JDBCSimulator } from './JDBCSimulator';