Added description for programming languages: (#1621)

* Added description for programming languages:

The tooltip description for the following languages
    1.Cpp
    2.Kotlin
    3.Rust
    4.Dart
    5.Java
has been added.

* fix: revise typo

---------

Co-authored-by: Christine Belzie <[email protected]>

components/TopBar/CategoryDescriptions.ts

@@ -35,6 +35,11 @@ const categoryDescriptions: CategoryDescriptions = {
   validation: 'Validation is the process of checking whether a system or its component(s) satisfies the specified requirements or not and checks the data is correct or not.',
   // languages
   'c programming': 'C is a general-purpose programming language that was developed in the early 1970s by Dennis Ritchie at Bell Labs. C is widely used for developing system software, embedded systems, and application software.',
+  cpp: "C++ is a versatile and powerful programming language that builds upon the features of C, offering object-oriented programming capabilities and support for low-level memory manipulation. It's widely used for developing system software, games, high-performance applications, and more.",
+  dart: "Dart is a programming language primarily used for building web and mobile applications with a focus on client-side development. It's the language behind the Flutter framework, allowing developers to create cross-platform apps with a single codebase. Dart offers features like a Just-In-Time (JIT) compiler for development speed and an Ahead-Of-Time (AOT) compiler for production performance optimization.",
+  kotlin: "Kotlin is a modern, statically-typed programming language that seamlessly interoperates with Java, making it a popular choice for Android app development. Known for its concise syntax and enhanced safety features, Kotlin offers nullable types and expressive constructs to streamline development processes.",
+  java: 'Java is a widely-used, object-oriented programming language known for its "write once, run anywhere" philosophy, enabling developers to create platform-independent applications. It provides a robust standard library, automatic memory management through garbage collection, and a strong emphasis on safety and portability in various domains, from web development to enterprise applications.',
+  rust: 'Rust is a systems programming language designed for safety and performance, featuring a strong focus on memory safety without sacrificing low-level control. Its ownership and borrowing system ensures prevention of common programming errors like null pointer dereferences, making it suitable for tasks ranging from system-level programming to building web services.',
   csharp: 'C# is a modern, object-oriented programming language that was developed by Microsoft in the early 2000s. C# is widely used for developing Windows desktop applications, web applications, and games.',
   golang: 'Go is a modern, open-source programming language that Google developed in the early 2000s. Go is widely used for developing networking, web, and cloud applications.',
   javascript: 'JavaScript is widely used for developing web applications, mobile applications, and desktop applications. JavaScript is a dynamically typed language that supports functional and object-oriented programming styles.',