Fix type editing attachments

packages/builder/src/components/backend/DataTable/modals/CreateEditColumn.svelte

@@ -365,13 +365,11 @@
 
   function getAllowedTypes() {
     if (originalName) {
-      const possibleTypes = (
+      const possibleTypes = SWITCHABLE_TYPES[field.type] || [
-        SWITCHABLE_TYPES[field.type] || [editableColumn.type]
+        editableColumn.type,
-      ).map(t => t.toLowerCase())
+      ]
       return Object.entries(FIELDS)
-        .filter(([fieldType]) =>
+        .filter(([_, field]) => possibleTypes.includes(field.type))
-          possibleTypes.includes(fieldType.toLowerCase())
-        )
         .map(([_, fieldDefinition]) => fieldDefinition)
     }