minor QOL improvement on first chat (#2353)

web/src/app/admin/configuration/llm/LLMProviderUpdateForm.tsx

@@ -218,7 +218,7 @@ export function LLMProviderUpdateForm({
       }}
     >
       {({ values, setFieldValue }) => (
-        <Form className="gap-y-6 mt-8">
+        <Form className="gap-y-6 items-stretch mt-8">
           <TextFormField
             name="name"
             label="Display Name"

web/src/app/chat/ChatPage.tsx

@@ -924,13 +924,6 @@ export function ChatPage({
 
       return;
     }
-    updateRegenerationState(
-      regenerationRequest
-        ? { regenerating: true, finalMessageIndex: messageIdToResend || 0 }
-        : null
-    );
-
-    updateChatState("loading");
 
     setAlternativeGeneratingAssistant(alternativeAssistantOverride);
     clientScrollToBottom();
@@ -987,6 +980,15 @@ export function ChatPage({
     }
 
     setSubmittedMessage(currMessage);
+
+    updateRegenerationState(
+      regenerationRequest
+        ? { regenerating: true, finalMessageIndex: messageIdToResend || 0 }
+        : null
+    );
+
+    updateChatState("loading");
+
     const currMessageHistory =
       messageToResendIndex !== null
         ? messageHistory.slice(0, messageToResendIndex)