fix(docs): tighten onBrokenLinks to throw and fix surfaced broken links (#40102)

Co-authored-by: Claude Code <noreply@anthropic.com>

docs/developer_docs/components/design-system/index.mdx

@@ -29,10 +29,10 @@ sidebar_position: 1
 
 ## Components
 
-- [DropdownContainer](./dropdowncontainer)
-- [Flex](./flex)
-- [Grid](./grid)
-- [Layout](./layout)
-- [MetadataBar](./metadatabar)
-- [Space](./space)
-- [Table](./table)
+- [DropdownContainer](./dropdowncontainer.mdx)
+- [Flex](./flex.mdx)
+- [Grid](./grid.mdx)
+- [Layout](./layout.mdx)
+- [MetadataBar](./metadatabar.mdx)
+- [Space](./space.mdx)
+- [Table](./table.mdx)

docs/developer_docs/components/index.mdx

@@ -62,7 +62,7 @@ This documentation is auto-generated from Storybook stories. To add or update co
 4. Run `yarn generate:superset-components` in the `docs/` directory
 
 :::info Work in Progress
-This component library is actively being documented. See the [Components TODO](./TODO) page for a list of components awaiting documentation.
+This component library is actively being documented. See the [Components TODO](./TODO.md) page for a list of components awaiting documentation.
 :::
 
 ---

docs/developer_docs/components/ui/index.mdx

@@ -29,49 +29,49 @@ sidebar_position: 1
 
 ## Components
 
-- [AutoComplete](./autocomplete)
-- [Avatar](./avatar)
-- [Badge](./badge)
-- [Breadcrumb](./breadcrumb)
-- [Button](./button)
-- [ButtonGroup](./buttongroup)
-- [CachedLabel](./cachedlabel)
-- [Card](./card)
-- [Checkbox](./checkbox)
-- [Collapse](./collapse)
-- [DatePicker](./datepicker)
-- [Divider](./divider)
-- [EditableTitle](./editabletitle)
-- [EmptyState](./emptystate)
-- [FaveStar](./favestar)
-- [IconButton](./iconbutton)
-- [Icons](./icons)
-- [IconTooltip](./icontooltip)
-- [InfoTooltip](./infotooltip)
-- [Input](./input)
-- [Label](./label)
-- [List](./list)
-- [ListViewCard](./listviewcard)
-- [Loading](./loading)
-- [Menu](./menu)
-- [Modal](./modal)
-- [ModalTrigger](./modaltrigger)
-- [Popover](./popover)
-- [ProgressBar](./progressbar)
-- [Radio](./radio)
-- [SafeMarkdown](./safemarkdown)
-- [Select](./select)
-- [Skeleton](./skeleton)
-- [Slider](./slider)
-- [Steps](./steps)
-- [Switch](./switch)
-- [TableCollection](./tablecollection)
-- [TableView](./tableview)
-- [Tabs](./tabs)
-- [Timer](./timer)
-- [Tooltip](./tooltip)
-- [Tree](./tree)
-- [TreeSelect](./treeselect)
-- [Typography](./typography)
-- [UnsavedChangesModal](./unsavedchangesmodal)
-- [Upload](./upload)
+- [AutoComplete](./autocomplete.mdx)
+- [Avatar](./avatar.mdx)
+- [Badge](./badge.mdx)
+- [Breadcrumb](./breadcrumb.mdx)
+- [Button](./button.mdx)
+- [ButtonGroup](./buttongroup.mdx)
+- [CachedLabel](./cachedlabel.mdx)
+- [Card](./card.mdx)
+- [Checkbox](./checkbox.mdx)
+- [Collapse](./collapse.mdx)
+- [DatePicker](./datepicker.mdx)
+- [Divider](./divider.mdx)
+- [EditableTitle](./editabletitle.mdx)
+- [EmptyState](./emptystate.mdx)
+- [FaveStar](./favestar.mdx)
+- [IconButton](./iconbutton.mdx)
+- [Icons](./icons.mdx)
+- [IconTooltip](./icontooltip.mdx)
+- [InfoTooltip](./infotooltip.mdx)
+- [Input](./input.mdx)
+- [Label](./label.mdx)
+- [List](./list.mdx)
+- [ListViewCard](./listviewcard.mdx)
+- [Loading](./loading.mdx)
+- [Menu](./menu.mdx)
+- [Modal](./modal.mdx)
+- [ModalTrigger](./modaltrigger.mdx)
+- [Popover](./popover.mdx)
+- [ProgressBar](./progressbar.mdx)
+- [Radio](./radio.mdx)
+- [SafeMarkdown](./safemarkdown.mdx)
+- [Select](./select.mdx)
+- [Skeleton](./skeleton.mdx)
+- [Slider](./slider.mdx)
+- [Steps](./steps.mdx)
+- [Switch](./switch.mdx)
+- [TableCollection](./tablecollection.mdx)
+- [TableView](./tableview.mdx)
+- [Tabs](./tabs.mdx)
+- [Timer](./timer.mdx)
+- [Tooltip](./tooltip.mdx)
+- [Tree](./tree.mdx)
+- [TreeSelect](./treeselect.mdx)
+- [Typography](./typography.mdx)
+- [UnsavedChangesModal](./unsavedchangesmodal.mdx)
+- [Upload](./upload.mdx)