refactor(gif): remove text autocomplete, increase search debounce

Remove the inline text suggestion list from the GIF picker. The
Threads-style approach of just letting the GIF search results update
directly is simpler and gets users to the GIFs faster.

Increase the search throttle from 500ms to 750ms to reduce churn
while typing and give results time to load before the next query fires.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/features/gifPicker/GifPickerDialog.tsx

@@ -10,7 +10,6 @@ import {GifPickerErrorBoundary} from '#/features/gifPicker/components/GifPickerE
 import {GifPickerGrid} from '#/features/gifPicker/components/GifPickerGrid'
 import {GifPickerHeader} from '#/features/gifPicker/components/GifPickerHeader'
 import {GifPickerPlaceholder} from '#/features/gifPicker/components/GifPickerPlaceholder'
-import {useGifAutocomplete} from '#/features/gifPicker/hooks/useGifAutocomplete'
 import {useGifPickerData} from '#/features/gifPicker/hooks/useGifPickerData'
 import {type Gif} from '#/features/gifPicker/types'
 
@@ -65,16 +64,7 @@ function GifPickerBody({
   const textInputRef = useRef<TextInput>(null)
   const listRef = useRef<ListMethods>(null)
   const [rawSearch, setRawSearch] = useState('')
-  const search = useThrottledValue(rawSearch, 500)
+  const search = useThrottledValue(rawSearch, 750)
-
-  const autocomplete = useGifAutocomplete({
-    onSelectSuggestion: text => {
-      setRawSearch(text)
-      // Set the TextInput's displayed value to match
-      textInputRef.current?.setNativeProps({text})
-      listRef.current?.scrollToOffset({offset: 0, animated: false})
-    },
-  })
 
   const {
     data,
@@ -107,7 +97,6 @@ function GifPickerBody({
 
   const onChangeSearch = (text: string) => {
     setRawSearch(text)
-    autocomplete.handleTextChange(text)
     listRef.current?.scrollToOffset({offset: 0, animated: false})
   }
 
@@ -118,7 +107,6 @@ function GifPickerBody({
         onChangeText={onChangeSearch}
         onClose={() => control.close()}
         onEscape={() => control.close()}
-        autocomplete={autocomplete}
       />
       {!hasData && (
         <GifPickerPlaceholder

src/features/gifPicker/components/GifPickerHeader.tsx

@@ -9,33 +9,34 @@ import * as TextField from '#/components/forms/TextField'
 import {ArrowLeft_Stroke2_Corner0_Rounded as Arrow} from '#/components/icons/Arrow'
 import {MagnifyingGlass_Stroke2_Corner0_Rounded as Search} from '#/components/icons/MagnifyingGlass'
 import {IS_WEB} from '#/env'
-import {
-  GIF_AUTOCOMPLETE_LISTBOX_ID,
-  GifAutocompleteSuggestions,
-  suggestionItemId,
-} from '#/features/gifPicker/components/GifAutocompleteSuggestions'
-import {type GifAutocompleteState} from '#/features/gifPicker/hooks/useGifAutocomplete'
 
 export function GifPickerHeader({
   inputRef,
   onChangeText,
   onClose,
   onEscape,
-  autocomplete,
 }: {
   inputRef: Ref<TextInput>
   onChangeText: (text: string) => void
   onClose: () => void
   onEscape: () => void
-  autocomplete: GifAutocompleteState
 }) {
   const {_} = useLingui()
   const t = useTheme()
   const {gtMobile} = useBreakpoints()
 
   return (
-    <View style={[native(a.pt_4xl), a.relative, a.mb_lg, a.pb_sm, t.atoms.bg]}>
+    <View
-      <View style={[a.flex_row, a.align_center, !gtMobile && web(a.gap_md)]}>
+      style={[
+        native(a.pt_4xl),
+        a.relative,
+        a.mb_lg,
+        a.flex_row,
+        a.align_center,
+        !gtMobile && web(a.gap_md),
+        a.pb_sm,
+        t.atoms.bg,
+      ]}>
       {!gtMobile && IS_WEB && (
         <Button
           size="small"
@@ -60,36 +61,13 @@ export function GifPickerHeader({
           maxLength={50}
           onKeyPress={({nativeEvent}) => {
             if (nativeEvent.key === 'Escape') {
-                if (!autocomplete.handleKeyDown('Escape')) {
               onEscape()
             }
-              } else {
-                autocomplete.handleKeyDown(nativeEvent.key)
-              }
           }}
-            // @ts-ignore web-only ARIA props
-            role={autocomplete.isVisible ? 'combobox' : undefined}
-            aria-controls={
-              autocomplete.isVisible ? GIF_AUTOCOMPLETE_LISTBOX_ID : undefined
-            }
-            aria-expanded={autocomplete.isVisible}
-            aria-autocomplete={autocomplete.isVisible ? 'list' : undefined}
-            aria-activedescendant={
-              autocomplete.isVisible && autocomplete.activeIndex >= 0
-                ? suggestionItemId(autocomplete.activeIndex)
-                : undefined
-            }
         />
       </TextField.Root>
-      </View>
 
-      {autocomplete.isVisible && (
+      {/* future: tabs (Trending / Recents / Categories) render here */}
-        <GifAutocompleteSuggestions
-          suggestions={autocomplete.suggestions}
-          activeIndex={autocomplete.activeIndex}
-          onSelect={autocomplete.selectSuggestion}
-        />
-      )}
     </View>
   )
 }