go-cart-io/cartogram-web

AI Summary: This GitHub issue outlines a task to implement comprehensive user input validation across various data points, including column/region names, data values, visualization types, and advanced settings. It specifies a list of validation rules to enforce and a set of test scenarios to ensure the robustness of these validations, particularly focusing on edge cases like special characters, non-English characters, and the critical validation of Vega specifications.