feat(web, server): Ability to use config file instead of admin UI (#3836)

* implement method to read config file

* getConfig returns config file if present

* return isConfigFile for http requests

* disable elements if config file is used, show message if config file is set, copy existing config to clipboard

* fix allowing partial configuration files

* add new env variable to docs

* fix tests

* minor refactoring, address review

* adapt config type in frontend

* remove unnecessary imports

* move config file reading to system-config repo

* add documentation

* fix code formatting in system settings page

* add validator for config file

* fix formatting in docs

* update generated files

* throw error when trying to update config. e.g. via cli or api

* switch to feature flags for isConfigFile

* refactoring

* refactor: config file

* chore: open api

* feat: always show copy/export buttons

* fix: default flags

* refactor: copy to clipboard

---------

Co-authored-by: Jason Rasmussen <jrasm91@gmail.com>

web/src/routes/+error.svelte

@@ -1,15 +1,11 @@
 <script>
   import { page } from '$app/stores';
-  import Message from 'svelte-material-icons/Message.svelte';
-  import PartyPopper from 'svelte-material-icons/PartyPopper.svelte';
+  import ImmichLogo from '$lib/components/shared-components/immich-logo.svelte';
   import CodeTags from 'svelte-material-icons/CodeTags.svelte';
   import ContentCopy from 'svelte-material-icons/ContentCopy.svelte';
-  import {
-    notificationController,
-    NotificationType,
-  } from '$lib/components/shared-components/notification/notification';
-  import { handleError } from '$lib/utils/handle-error';
-  import ImmichLogo from '$lib/components/shared-components/immich-logo.svelte';
+  import Message from 'svelte-material-icons/Message.svelte';
+  import PartyPopper from 'svelte-material-icons/PartyPopper.svelte';
+  import { copyToClipboard } from '../api/utils';
 
   const handleCopy = async () => {
     //
@@ -18,15 +14,7 @@
       return;
     }
 
-    try {
-      await navigator.clipboard.writeText(`${error.message} - ${error.code}\n${error.stack}`);
-      notificationController.show({
-        type: NotificationType.Info,
-        message: 'Copied error to clipboard',
-      });
-    } catch (error) {
-      handleError(error, 'Unable to copy to clipboard');
-    }
+    await copyToClipboard(`${error.message} - ${error.code}\n${error.stack}`);
   };
 </script>