refactor: drop two more dead prop chains in the sub-block editor

`GroupedCheckboxList` declares `title` (required) and `maxHeight` and reads
neither. It renders its own hardcoded copy instead — `Select PII Types to Detect`
for the header and `PII types` for the field label — so a block author who sets
`title` on a `grouped-checkbox-list` subBlock gets silence, and the
`maxHeight = 400` default implies a scroll ceiling that is never applied. Both
props go, along with the two values `sub-block.tsx` was passing.

`flatTagList` was threaded through the recursive tag renderers to a dead end:
declared on `NestedTagRendererProps`, inherited by `FolderContentsProps`,
destructured in both, forwarded once more, and read by neither. Its real consumer
is `flatTagIndexMap`, built from it at the top level and documented "Map from tag
string to index for O(1) lookups" — so the array was being carried alongside its
own index through arbitrary nesting depth. The top-level memo and its length
checks stay; only the descent goes.

Note the component's copy is PII-specific while its name and props present as
generic. Renaming it is a separate call, not made here.

Both removals were caught mid-flight by `tsc`: my line patterns also matched a
live `flatTagList` on `KeyboardNavigationHandler` and a live `title` on `Switch`,
which is exactly why the type-check runs before the commit and not after.

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/grouped-checkbox-list/grouped-checkbox-list.tsx

@@ -35,23 +35,19 @@ function SelectedCountDisplay({ noneSelected, allSelected, count }: SelectedCoun
 interface GroupedCheckboxListProps {
   blockId: string
   subBlockId: string
-  title: string
   options: { label: string; id: string; group?: string }[]
   isPreview?: boolean
   subBlockValues: Record<string, any>
   disabled?: boolean
-  maxHeight?: number
 }
 
 export function GroupedCheckboxList({
   blockId,
   subBlockId,
-  title,
   options,
   isPreview = false,
   subBlockValues,
   disabled = false,
-  maxHeight = 400,
 }: GroupedCheckboxListProps) {
   const activeSearchTarget = useActiveSearchTarget()
   const [open, setOpen] = useState(false)

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tag-dropdown/tag-dropdown.tsx

@@ -376,7 +376,6 @@ const buildNestedTagTree = (tags: string[], blockName: string): NestedTag[] => {
 interface NestedTagRendererProps {
   nestedTag: NestedTag
   group: NestedBlockTagGroup
-  flatTagList: Array<{ tag: string; group?: BlockTagGroup }>
   /** Map from tag string to index for O(1) lookups */
   flatTagIndexMap: Map<string, number>
   selectedIndex: number
@@ -403,7 +402,6 @@ interface FolderContentsProps extends NestedTagRendererProps {
  */
 const FolderContentsInner: React.FC<FolderContentsProps> = ({
   group,
-  flatTagList,
   flatTagIndexMap,
   selectedIndex,
   setSelectedIndex,
@@ -565,7 +563,6 @@ const FolderContents: React.FC<Omit<NestedTagRendererProps, never>> = (props) =>
 const NestedTagRenderer: React.FC<NestedTagRendererProps> = ({
   nestedTag,
   group,
-  flatTagList,
   flatTagIndexMap,
   selectedIndex,
   setSelectedIndex,
@@ -612,7 +609,6 @@ const NestedTagRenderer: React.FC<NestedTagRendererProps> = ({
         <FolderContents
           nestedTag={nestedTag}
           group={group}
-          flatTagList={flatTagList}
           flatTagIndexMap={flatTagIndexMap}
           selectedIndex={selectedIndex}
           setSelectedIndex={setSelectedIndex}
@@ -1633,9 +1629,9 @@ export const TagDropdown: React.FC<TagDropdownProps> = ({
         </PopoverAnchor>
         <KeyboardNavigationHandler
           visible={visible}
+          flatTagList={flatTagList}
           selectedIndex={selectedIndex}
           setSelectedIndex={setSelectedIndex}
-          flatTagList={flatTagList}
           nestedBlockTagGroups={nestedBlockTagGroups}
           handleTagSelect={handleTagSelect}
           onFolderEnter={() => {
@@ -1720,7 +1716,6 @@ export const TagDropdown: React.FC<TagDropdownProps> = ({
                             key={`${group.blockId}-${nestedTag.key}`}
                             nestedTag={nestedTag}
                             group={group}
-                            flatTagList={flatTagList}
                             flatTagIndexMap={flatTagIndexMap}
                             selectedIndex={selectedIndex}
                             setSelectedIndex={setSelectedIndex}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/sub-block.tsx

@@ -844,12 +844,10 @@ function SubBlockComponent({
           <GroupedCheckboxList
             blockId={blockId}
             subBlockId={config.id}
-            title={config.title ?? ''}
             options={config.options as { label: string; id: string; group?: string }[]}
             isPreview={isPreview}
             subBlockValues={subBlockValues ?? {}}
             disabled={isDisabled}
-            maxHeight={config.maxHeight}
           />
         )