fix checkbox with indeterminate

Author: danicc097

frontend/src/utils/formGeneration.tsx

@@ -322,6 +322,7 @@ export default function DynamicForm<Form extends object, IgnoredFormKeys extends
     <DynamicFormProvider value={{ formName, options, schemaFields: _schemaFields }}>
       <>
         <FormData />
+        {/* TODO: if not visible (large forms), should show a popup arrow on viewport bottom left "Go to errors" to focus on callout */}
         <DynamicFormErrorCallout />
         <form
           onSubmit={(e) => {

frontend/src/utils/mantine-react-table.components.tsx

@@ -404,16 +404,14 @@ export const MRTCheckboxInput = forwardRef(function MRTCheckboxInput(
   const filterMode = dynamicConfig?.filterModes[column.id]
   const value = column.getFilterValue()
 
-  // FIXME: on checked=false change not rerendered, only on indeterminate
   return (
     <Checkbox
       {...props}
       data-testid={`input-filter--${column.id}`}
       ref={ref as any}
       checked={value === 'true'}
       data-checked={value === 'true'}
-      indeterminate={value === undefined}
-      data-indeterminate={value === undefined}
+      {...(value === undefined && { indeterminate: true, 'data-indeterminate': true })}
       size="xs"
       onChange={(event) => {
         const newValue =