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/lib/components/admin-page/settings/setting-buttons-row.svelte

@@ -5,6 +5,7 @@
   const dispatch = createEventDispatcher();
 
   export let showResetToDefault = true;
+  export let disabled = false;
 </script>
 
 <div class="mt-8 flex justify-between gap-2">
@@ -20,7 +21,7 @@
   </div>
 
   <div class="right">
-    <Button size="sm" color="gray" on:click={() => dispatch('reset')}>Reset</Button>
-    <Button size="sm" on:click={() => dispatch('save')}>Save</Button>
+    <Button {disabled} size="sm" color="gray" on:click={() => dispatch('reset')}>Reset</Button>
+    <Button {disabled} size="sm" on:click={() => dispatch('save')}>Save</Button>
   </div>
 </div>