Allow apply system prompt changes to current chat.

src/lib/ChatSettingsModal.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-  import { applyProfile, getDefaultProfileKey, getProfile, getProfileSelect } from './Profiles.svelte'
+  import { applyProfile, getDefaultProfileKey, getProfile, getProfileSelect, setSystemPrompt } from './Profiles.svelte'
   import { getChatDefaults, getChatSettingList, getChatSettingObjectByKey, getExcludeFromProfile } from './Settings.svelte'
   import {
     saveChatStore,
@@ -25,9 +25,8 @@
     faDownload,
     faUpload,
     faSquarePlus,
-
-    faRotateLeft
-
+    faRotateLeft,
+    faCheckCircle
   } from '@fortawesome/free-solid-svg-icons/index'
   import { exportProfileAsJSON } from './Export.svelte'
   import { onMount, afterUpdate } from 'svelte'
@@ -271,6 +270,12 @@
     chatSettings.isDirty = !deepEqual(profile, chatSettings)
   }
 
+  const applyToChat = () => {
+    if (chatSettings.useSystemPrompt) {
+      setSystemPrompt(chatId)
+    }
+  }
+
 </script>
 
 <!-- svelte-ignore a11y-click-events-have-key-events -->
@@ -322,6 +327,9 @@
                 <a href={'#'} class="dropdown-item" on:click|preventDefault={startNewChat}>
                   <span class="menu-icon"><Fa icon={faSquarePlus}/></span> Start New Chat Using Profile
                 </a>
+                <a href={'#'} class="dropdown-item" on:click|preventDefault={applyToChat}>
+                  <span class="menu-icon"><Fa icon={faCheckCircle}/></span> Apply Prompts to Current Chat
+                </a>
                 <hr class="dropdown-divider">
                 <a href={'#'} 
                   class="dropdown-item"

src/lib/Profiles.svelte

@@ -2,7 +2,7 @@
   import { getChatDefaults, getExcludeFromProfile } from './Settings.svelte'
   import { get, writable } from 'svelte/store'
   // Profile definitions
-  import { addMessage, clearMessages, getChat, getChatSettings, getCustomProfiles, getGlobalSettings, newName, resetChatSettings, saveChatStore, setGlobalSettingValueByKey, updateProfile } from './Storage.svelte'
+  import { addMessage, clearMessages, deleteMessage, getChat, getChatSettings, getCustomProfiles, getGlobalSettings, newName, resetChatSettings, saveChatStore, setGlobalSettingValueByKey, updateProfile } from './Storage.svelte'
   import type { Message, SelectOption, ChatSettings } from './Types.svelte'
   import { v4 as uuidv4 } from 'uuid'
 
@@ -89,6 +89,18 @@ export const prepareSummaryPrompt = (chatId:number, maxTokens:number) => {
     return mergeProfileFields(settings, currentSummaryPrompt, Math.floor(maxTokens * 0.75)).trim()
 }
 
+export const setSystemPrompt = (chatId: number) => {
+    const chat = getChat(chatId)
+    const systemPromptMessage:Message = {
+      role: 'system',
+      content: prepareProfilePrompt(chatId),
+      uuid: uuidv4()
+    }
+    if (chat.messages[0]?.role === 'system') deleteMessage(chatId, chat.messages[0].uuid)
+    chat.messages.unshift(systemPromptMessage)
+    saveChatStore()
+}
+
 // Restart currently loaded profile
 export const restartProfile = (chatId:number, noApply:boolean = false) => {
     const settings = getChatSettings(chatId)
@@ -96,12 +108,7 @@ export const restartProfile = (chatId:number, noApply:boolean = false) => {
     // Clear current messages
     clearMessages(chatId)
     // Add the system prompt
-    const systemPromptMessage:Message = {
-      role: 'system',
-      content: prepareProfilePrompt(chatId),
-      uuid: uuidv4()
-    }
-    addMessage(chatId, systemPromptMessage)
+    setSystemPrompt(chatId)
 
     // Add trainingPrompts, if any
     if (settings.trainingPrompts) {