Reprint non-tainted group chat on switching personas (#4603)

* fix: reprint non-tainted group chat on switching personas

* feat: mark chat as tainted when sending user message

* feat: mark chat as tainted when adding custom messages or captions

* feat: export createOrEditCharacter function and integrate it into retriggerFirstMessageOnEmptyChat

* fix: optimize loadPersonaForCurrentChat by storing current chat ID in a variable

* Improve conditions of first message retrigger

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Co-authored-by: Cohee <18619528+Cohee1207@users.noreply.github.com>

public/scripts/extensions/caption/index.js

@@ -1,6 +1,6 @@
 import { ensureImageFormatSupported, getBase64Async, getFileExtension, isTrueBoolean, saveBase64AsFile } from '../../utils.js';
 import { getContext, getApiUrl, doExtrasFetch, extension_settings, modules, renderExtensionTemplateAsync } from '../../extensions.js';
-import { appendMediaToMessage, eventSource, event_types, getRequestHeaders, saveChatConditional, saveSettingsDebounced, substituteParamsExtended } from '../../../script.js';
+import { appendMediaToMessage, chat_metadata, eventSource, event_types, getRequestHeaders, saveChatConditional, saveSettingsDebounced, substituteParamsExtended } from '../../../script.js';
 import { getMessageTimeStamp } from '../../RossAscends-mods.js';
 import { SECRET_KEYS, secret_state } from '../../secrets.js';
 import { getMultimodalCaption } from '../shared.js';
@@ -174,6 +174,7 @@ async function sendCaptionedMessage(caption, image) {
             inline_image: !!extension_settings.caption.show_in_chat,
         },
     };
+    chat_metadata['tainted'] = true;
     context.chat.push(message);
     const messageId = context.chat.length - 1;
     await eventSource.emit(event_types.MESSAGE_SENT, messageId);