feat(server): search unknown place (#10866)

* Allow submission of null country

* Update searchAssetBuilder to handle nulls

andWhere({country:null}) produces `"exifInfo"."country" = NULL`. We want
`"exifInfo"."country" IS NULL`, so we have to treat NULL as a special
case

* Allow null country in frontend

* Make the query code a bit more straightforward

* Remove unused brackets import

* Remove log message

* Don't change whitespace for no reason

* Fix prettier style issue

* Update search.dto.ts validators per @jrasm91's recommendation

* Update api types

* Combine null country and state into one guard clause

* chore: clean up

* chore: add e2e for null/empty city, state, country search

* refactor: server returns suggestion for null values

* chore: clean up

---------

Co-authored-by: Jason Rasmussen <jrasm91@gmail.com>
Co-authored-by: Alex Tran <alex.tran1502@gmail.com>
Co-authored-by: Jason Rasmussen <jason@rasm.me>

web/src/lib/components/shared-components/search-bar/search-camera-section.svelte

@@ -6,9 +6,9 @@
 </script>
 
 <script lang="ts">
-  import { SearchSuggestionType, getSearchSuggestions } from '@immich/sdk';
-  import Combobox, { toComboBoxOptions } from '../combobox.svelte';
+  import Combobox, { asComboboxOptions, asSelectedOption } from '$lib/components/shared-components/combobox.svelte';
   import { handlePromiseError } from '$lib/utils';
+  import { SearchSuggestionType, getSearchSuggestions } from '@immich/sdk';
   import { t } from 'svelte-i18n';
 
   export let filters: SearchCameraFilter;
@@ -22,17 +22,30 @@
   $: handlePromiseError(updateModels(makeFilter));
 
   async function updateMakes(model?: string) {
-    makes = await getSearchSuggestions({
+    const results: Array<string | null> = await getSearchSuggestions({
       $type: SearchSuggestionType.CameraMake,
       model,
+      includeNull: true,
     });
+    if (filters.make && !makes.includes(filters.make)) {
+      filters.make = undefined;
+    }
+
+    makes = results.map((result) => result ?? '');
   }
 
   async function updateModels(make?: string) {
-    models = await getSearchSuggestions({
+    const results: Array<string | null> = await getSearchSuggestions({
       $type: SearchSuggestionType.CameraModel,
       make,
+      includeNull: true,
     });
+
+    const models = results.map((result) => result ?? '');
+
+    if (filters.model && !models.includes(filters.model)) {
+      filters.model = undefined;
+    }
   }
 </script>
 
@@ -44,9 +57,9 @@
       <Combobox
         label={$t('make')}
         on:select={({ detail }) => (filters.make = detail?.value)}
-        options={toComboBoxOptions(makes)}
+        options={asComboboxOptions(makes)}
         placeholder={$t('search_camera_make')}
-        selectedOption={makeFilter ? { label: makeFilter, value: makeFilter } : undefined}
+        selectedOption={asSelectedOption(makeFilter)}
       />
     </div>
 
@@ -54,9 +67,9 @@
       <Combobox
         label={$t('model')}
         on:select={({ detail }) => (filters.model = detail?.value)}
-        options={toComboBoxOptions(models)}
+        options={asComboboxOptions(models)}
         placeholder={$t('search_camera_model')}
-        selectedOption={modelFilter ? { label: modelFilter, value: modelFilter } : undefined}
+        selectedOption={asSelectedOption(modelFilter)}
       />
     </div>
   </div>