Delete plaintext config via API. Catch any offline model loading exception

src/interface/obsidian/src/settings.ts

@@ -1,4 +1,4 @@
-import { App, Notice, PluginSettingTab, request, Setting, TFile } from 'obsidian';
+import { App, Notice, PluginSettingTab, Setting, TFile } from 'obsidian';
 import Khoj from 'src/main';
 import { updateContentIndex } from './utils';
 

src/khoj/routers/api.py

@@ -186,6 +186,10 @@ if not state.demo:
             state.content_index.markdown = None
         elif content_type == "org":
             state.content_index.org = None
+        elif content_type == "plaintext":
+            state.content_index.plaintext = None
+        else:
+            logger.warning(f"Request to delete unknown content type: {content_type} via API")
 
         try:
             save_config_to_file_updated_state()

src/khoj/utils/config.py

@@ -106,7 +106,7 @@ class ConversationProcessorConfigModel:
         if self.offline_chat.enable_offline_chat:
             try:
                 self.gpt4all_model.loaded_model = download_model(self.offline_chat.chat_model)
-            except ValueError as e:
+            except Exception as e:
                 self.offline_chat.enable_offline_chat = False
                 self.gpt4all_model.loaded_model = None
                 logger.error(f"Error while loading offline chat model: {e}", exc_info=True)