What is IoTeX Wallet?

Could you please elaborate on the IoTeX Wallet? I'm curious to understand its functionalities and role in the IoTeX ecosystem. Specifically, how does it enable users to securely store and manage their IoTeX tokens? Is it a hot wallet or a cold wallet? Does it offer any additional features such as staking rewards or decentralized application support? Furthermore, how secure is the IoTeX Wallet, and what measures have been taken to ensure the safety of user funds? I'd appreciate a detailed explanation of these aspects to gain a comprehensive understanding of the IoTeX Wallet.