public with sharing class FileDescrip {
    @AuraEnabled(cacheable=false)
    public static void updateFileDescription(Id recordId, String description) {
        System.debug('Record Id' + recordId);
        System.debug('description' + description);

        Account acc = [SELECT Id, File_Description__c FROM Account WHERE Id = :recordId];
        acc.File_Description__c = description;
        update acc;
    }
}