fix: Fix the continuation feature

Author: Amery2010

components/EditableArea.tsx

@@ -180,8 +180,9 @@ function EditableArea({ content: originalContent, isEditing, onChange, onCancel
         model,
         content,
       })
+      const originalContent = content + '\n'
       await textStream(readableStream, (text) => {
-        setContent((prevContent) => prevContent + text)
+        setContent(originalContent + text)
       })
     } catch (err) {
       console.error(err)

utils/prompt.ts

@@ -300,7 +300,8 @@ Rules and guidelines:
 export function continuation(content: string, systemInstruction: string = '') {
   return `
 Your task is to continue writing the following artifact.
-Ensure you do not change the meaning or story behind the artifact, only the continued artifact needs to be returned, without including the current artifact.
+Maintain the following artifact writing style, including but not limited to typesetting, punctuation, etc.
+Only the continued artifact needs to be returned, without including the current artifact.
 
 Here is the current content of the artifact:
 <artifact>