feat(frontend): add disclaimer to README (#82)

* feat(frontend): add disclaimer banner to homepage and update README with security warning

* fix(docs): improve README disclaimer clarity and formatting

* fix(docs): update README with warning about example code

Added a warning about the educational nature of the examples and potential security vulnerabilities.

* fix(frontend): improve disclaimer banner text wrapping for better readability

* Remove disclaimer banner from the app

---------

Co-authored-by: Vukašin Manojlović <vmanojlovic@monad.foundation>

Author: Im-Madhur-Gupta

README.md

@@ -1,6 +1,11 @@
 # Monode
 Example application using the Monad Execution Events SDK
 
+> [!WARNING]
+> This repository contains example code to demonstrate Monad features and concepts. The examples illustrate how to use the features, in their simplest form.
+>
+> These implementations are educational examples, and have not been tested or audited. They are likely to have significant errors and security vulnerabilities. They should not be relied on for any purpose. Do not use the code in this example in a production environment without completing your own audits and application of best practices.
+
 ![App](public/app.gif)
 ## Resources