Transactions fee market

In the roadmap for Starknet, one of the key areas of development is the introduction of a fee market to improve user experience during network congestion. Currently, when congestion occurs, waiting times for transactions increase for everyone. To address this issue, Starknet plans to introduce a fee market in version 0.14.0, which will enable users to accelerate their transaction's finality time by applying a fee market. This will provide users with a predictable and seamless experience, including during periods of high network activity.