Improve the UI and visual design of the Zulip web app

The Zulip web application is being redesigned but there are several UI inconsistencies in various parts of the web app. After seeing the redesign-label issues, I understood that the modals, sidebars, icons, and interactive visual features are not all developed with an integrated look. This makes an inconsistent user experience with elements such as modal inputs being unstandardized, Icons and symbols lacking visual consistency across the web app components, and elements within the sidebar having improper alignment, scroll animation, and elements such as link styles, color logic, and interactions. The goal of this project is to standardize and improve these UI elements in a structured way. I will work on redesign-labeled issues along with UI tasks, improving design pattern consistency, improving CSS structure, and managing elements with modern UI standards. With careful testing and taking mentor feedback to ensure accuracy, have discussions on future design provided in Figma.