fix: userColumn check.

Author: ItzNotABug

src/routes/(console)/project-[region]-[project]/databases/database-[database]/(suggestions)/empty.svelte

@@ -1349,7 +1349,7 @@
                             : '--overlay-icon-color'}
                         {@const isColumnInteractable =
                             isCustomColumn(column.id) && columnObj && !columnObj.isPlaceholder}
-                        {@const userColumn = column.id === '$id' || column.custom}
+                        {@const userColumn = column.id === '$id' || !column.custom}
 
                         {#if userColumn}
                             <Spreadsheet.Header.Cell