Configure language & start language plugins (#400)

app/MindWork AI Studio/Components/Settings/SettingsPanelApp.razor

@@ -3,14 +3,25 @@
 @inherits SettingsPanelBase
 
 <ExpansionPanel HeaderIcon="@Icons.Material.Filled.Apps" HeaderText="App Options">
+    
+    @if (PreviewFeatures.PRE_PLUGINS_2025.IsEnabled(this.SettingsManager))
+    {
+        <ConfigurationSelect OptionDescription="Language behavior" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.LanguageBehavior)" Data="@ConfigurationSelectDataFactory.GetLangBehaviorData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.LanguageBehavior = selectedValue)" OptionHelp="Select the language behavior for the app. The default is to use the system language. You might want to choose a language manually?"/>
+        
+        @if (this.SettingsManager.ConfigurationData.App.LanguageBehavior is LangBehavior.MANUAL)
+        {
+            <ConfigurationSelect OptionDescription="Language" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.LanguagePluginId)" Data="@ConfigurationSelectDataFactory.GetLanguagesData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.LanguagePluginId = selectedValue)" OptionHelp="Select the language for the app."/>
+        }
+    }
+    
     <ConfigurationSelect OptionDescription="Color theme" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreferredTheme)" Data="@ConfigurationSelectDataFactory.GetThemesData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.PreferredTheme = selectedValue)" OptionHelp="Choose the color theme that best suits for you."/>
     <ConfigurationOption OptionDescription="Save energy?" LabelOn="Energy saving is enabled" LabelOff="Energy saving is disabled" State="@(() => this.SettingsManager.ConfigurationData.App.IsSavingEnergy)" StateUpdate="@(updatedState => this.SettingsManager.ConfigurationData.App.IsSavingEnergy = updatedState)" OptionHelp="When enabled, streamed content from the AI is updated once every third second. When disabled, streamed content will be updated as soon as it is available."/>
-    <ConfigurationOption OptionDescription="Enable spellchecking?" LabelOn="Spellchecking is enabled" LabelOff="Spellchecking is disabled" State="@(() => this.SettingsManager.ConfigurationData.App.EnableSpellchecking)" StateUpdate="@(updatedState => this.SettingsManager.ConfigurationData.App.EnableSpellchecking = updatedState)" OptionHelp="When enabled, spellchecking will be active in all input fields. Depending on your operating system, errors may not be visually highlighted, but right-clicking may still offer possible corrections." />
+    <ConfigurationOption OptionDescription="Enable spellchecking?" LabelOn="Spellchecking is enabled" LabelOff="Spellchecking is disabled" State="@(() => this.SettingsManager.ConfigurationData.App.EnableSpellchecking)" StateUpdate="@(updatedState => this.SettingsManager.ConfigurationData.App.EnableSpellchecking = updatedState)" OptionHelp="When enabled, spellchecking will be active in all input fields. Depending on your operating system, errors may not be visually highlighted, but right-clicking may still offer possible corrections."/>
     <ConfigurationSelect OptionDescription="Check for updates" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.UpdateBehavior)" Data="@ConfigurationSelectDataFactory.GetUpdateBehaviorData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.UpdateBehavior = selectedValue)" OptionHelp="How often should we check for app updates?"/>
     <ConfigurationSelect OptionDescription="Navigation bar behavior" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.NavigationBehavior)" Data="@ConfigurationSelectDataFactory.GetNavBehaviorData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.NavigationBehavior = selectedValue)" OptionHelp="Select the desired behavior for the navigation bar."/>
     <ConfigurationSelect OptionDescription="Preview feature visibility" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreviewVisibility)" Data="@ConfigurationSelectDataFactory.GetPreviewVisibility()" SelectionUpdate="@this.UpdatePreviewFeatures" OptionHelp="Do you want to show preview features in the app?"/>
-    
-    @if(this.SettingsManager.ConfigurationData.App.PreviewVisibility > PreviewVisibility.NONE)
+
+    @if (this.SettingsManager.ConfigurationData.App.PreviewVisibility > PreviewVisibility.NONE)
     {
         var availablePreviewFeatures = ConfigurationSelectDataFactory.GetPreviewFeaturesData(this.SettingsManager).ToList();
         if (availablePreviewFeatures.Count > 0)
@@ -18,7 +29,7 @@
             <ConfigurationMultiSelect OptionDescription="Select preview features" SelectedValues="@(() => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures)" Data="@availablePreviewFeatures" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures = selectedValue)" OptionHelp="Which preview features would you like to enable?"/>
         }
     }
-    
+
     <ConfigurationProviderSelection Component="Components.APP_SETTINGS" Data="@this.AvailableLLMProvidersFunc()" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreselectedProvider)" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.PreselectedProvider = selectedValue)" HelpText="@(() => "Would you like to set one provider as the default for the entire app? When you configure a different provider for an assistant, it will always take precedence.")"/>
     <ConfigurationSelect OptionDescription="Preselect one of your profiles?" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreselectedProfile)" Data="@ConfigurationSelectDataFactory.GetProfilesData(this.SettingsManager.ConfigurationData.Profiles)" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.PreselectedProfile = selectedValue)" OptionHelp="Would you like to set one of your profiles as the default for the entire app? When you configure a different profile for an assistant, it will always take precedence."/>
 </ExpansionPanel>