Add i18n support with language selector on login page (#1410)

* feat: add i18n support with language selector on login page

Co-Authored-By: Junyan Qin <Chin> <rockchinq@gmail.com>

* feat: complete i18n implementation for all webui components

Co-Authored-By: Junyan Qin <Chin> <rockchinq@gmail.com>

* feat: complete all hardcoded text

* feat: dynamic label i18n

* fix: lint errors

* fix: lint errors

* delete sh fils

* fix: edit model dialog title

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Junyan Qin <Chin> <rockchinq@gmail.com>

web/src/app/home/plugins/plugin-installed/plugin-form/PluginForm.tsx

@@ -12,6 +12,7 @@ import {
   DialogFooter,
 } from '@/components/ui/dialog';
 import { toast } from 'sonner';
+import { i18nObj } from '@/i18n/I18nProvider';
 
 enum PluginRemoveStatus {
   WAIT_INPUT = 'WAIT_INPUT',
@@ -179,7 +180,7 @@ export default function PluginForm({
       <div className="space-y-2">
         <div className="text-lg font-medium">{pluginInfo.name}</div>
         <div className="text-sm text-gray-500 pb-2">
-          {pluginInfo.description.zh_CN}
+          {i18nObj(pluginInfo.description)}
         </div>
         {pluginInfo.config_schema.length > 0 && (
           <DynamicFormComponent