The code seems to be perfectly fine without any identified irregularities or improvements required as of 2021-09-01.

However, it could benefit from better clarity and organization for larger-scale review. A clear header with comments describing functions might help avoid confusion later on while reading through the source.

For instance,

/**
 * Generate columns based on i18n locale setting.
 *
 * @param {string} columnsPrefix Column prefix prefix used across all tables
 */

class TableColumnsGenerator {
   // Other methods follow...
}

Additionally,

export interface ITableColumnsInfoProps {
   columnsPrefix: string;
}

// Usage examples here...

export class ColumnWidthController {

   /**
    * Gets a column width value based on the locale (i18n).
    */
   
   getGridColumnValue({ columnsPrefix }?: Partial<ITableColumnsInfoProps>) : string;

}

This structure would make it easier to understand which properties represent what information about each table's columns within its generateColumns() method, improving maintainability over time.