docs: bifurcate documentation into user and admin sections (#38196)

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

docs/developer_docs/components/ui/index.mdx

@@ -0,0 +1,77 @@
+---
+title: Core Components
+sidebar_label: Core Components
+sidebar_position: 1
+---
+
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
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+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
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+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+
+# Core Components
+
+46 components available in this category.
+
+## 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)