Set chatSidebar prompt, Setting name fields to empty str if value null

TextArea and Input field values cannot be null.

src/interface/web/app/components/chatSidebar/chatSidebar.tsx

@@ -502,7 +502,7 @@ function ChatSidebarInternal({ ...props }: ChatSideBarProps) {
                             <SidebarMenuItem className="list-none">
                                 <Textarea
                                     className="w-full h-32 resize-none hover:resize-y"
-                                    value={customPrompt}
+                                    value={customPrompt || ""}
                                     onChange={(e) => handleCustomPromptChange(e.target.value)}
                                     readOnly={!isEditable}
                                     disabled={!isEditable} />

src/interface/web/app/settings/page.tsx

@@ -746,7 +746,7 @@ export default function SettingsView() {
                                                     <Input
                                                         type="text"
                                                         onChange={(e) => setName(e.target.value)}
-                                                        value={name}
+                                                        value={name || ""}
                                                         className="w-full border border-gray-300 rounded-lg p-4 py-6"
                                                     />
                                                 </CardContent>