feat: rewrite image picker (#6556)

* feat: rewrite image picker

* style: auto-fix lint and format

* fix: address image picker review

* fix: preserve unicode icon searches

* test: stabilize custom widget login

* fix: suggest image searches only on create

apps/nextjs/src/app/[locale]/manage/custom-widgets/_custom-widget-form.tsx

@@ -697,7 +697,11 @@ export function CustomWidgetForm({ mode, initialValues, definitionId }: CustomWi
             <Stack gap="sm">
               <TextInput label={t("field.name")} required {...form.getInputProps("name")} />
               <Textarea label={t("field.description")} {...form.getInputProps("description")} />
-              <IconPicker withAsterisk={false} {...form.getInputProps("iconUrl")} />
+              <IconPicker
+                withAsterisk={false}
+                suggestedSearch={mode === "create" ? form.values.name : undefined}
+                {...form.getInputProps("iconUrl")}
+              />
             </Stack>
           </Fieldset>
 

apps/nextjs/src/app/[locale]/manage/search-engines/_form.tsx

@@ -57,7 +57,10 @@ export const SearchEngineForm = (props: SearchEngineFormProps) => {
             />
           </Grid.Col>
         </Grid>
-        <IconPicker {...form.getInputProps("iconUrl")} />
+        <IconPicker
+          {...form.getInputProps("iconUrl")}
+          suggestedSearch={initialValues === undefined ? form.values.name : undefined}
+        />
 
         <Fieldset legend={t("search.engine.page.edit.configControl")}>
           <SegmentedControl