feat: add panel title headings to all UserSettings panels

packages/web/src/components/modals/settingsPanels/AccountPanel.tsx

@@ -364,6 +364,7 @@ export function AccountPanel() {
 
   return (
     <div className="space-y-5">
+      <h2 className="text-lg font-semibold text-txt-primary mb-6">My Account</h2>
       {/* ── Profile Customization ── */}
       <div>
         <div className="text-[11px] font-semibold text-txt-tertiary uppercase tracking-wider mb-1.5">

packages/web/src/components/modals/settingsPanels/ConnectionsPanel.tsx

@@ -1,5 +1,10 @@
 import { ConnectedInstances } from '../ConnectedInstances';
 
 export function ConnectionsPanel() {
-  return <ConnectedInstances />;
+  return (
+    <div className="space-y-5">
+      <h2 className="text-lg font-semibold text-txt-primary mb-6">Connections</h2>
+      <ConnectedInstances />
+    </div>
+  );
 }

packages/web/src/components/modals/settingsPanels/InstancePanel.tsx

@@ -27,6 +27,7 @@ export function InstancePanel() {
 
   return (
     <div className="space-y-4">
+      <h2 className="text-lg font-semibold text-txt-primary mb-6">Instance</h2>
       {/* Sub-tab switcher */}
       <div className="flex gap-1 p-1 bg-white/[0.02] rounded-full w-fit">
         <button onClick={() => setSubTab('general')} className={pillClass('general')}>

packages/web/src/components/modals/settingsPanels/PrivacyPanel.tsx

@@ -31,6 +31,7 @@ export function PrivacyPanel() {
 
   return (
     <div className="space-y-5">
+      <h2 className="text-lg font-semibold text-txt-primary mb-6">Privacy</h2>
       <div>
         <div className="text-[11px] font-semibold text-txt-tertiary uppercase tracking-wider mb-1.5">
           Discovery

packages/web/src/components/modals/settingsPanels/VoicePanel.tsx

@@ -13,6 +13,7 @@ export function VoicePanel() {
 
   return (
     <div className="space-y-5">
+      <h2 className="text-lg font-semibold text-txt-primary mb-6">Voice</h2>
       <div>
         <div className="text-[11px] font-semibold text-txt-tertiary uppercase tracking-wider mb-1.5">
           Volume