panel: align page URLs, titles, and headings

Settings moves to /settings with a 308 redirect from /account; domains, Status, Users, and user forms get matching browser titles and h1 text; backup page title reflects domain import.

Co-Authored-By: Composer <noreply@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

internal/web/view/templates/domain_detail.html

@@ -53,7 +53,7 @@
   they are policy, and the domain may already publish an SPF record for other
   senders. SelfPost is a send-only relay — most operators have no inbox on the
   sending domain, so the suggested DMARC record omits <code>rua=</code> unless a
-  report address is configured below or in <a href="/account">Settings</a>.
+  report address is configured below or in <a href="/settings">Settings</a>.
   Publish both as TXT records.</p>
 
   <label>SPF — host / name</label>

internal/web/view/templates/layout.html

@@ -81,7 +81,7 @@
   {{template "sections" .}}
   <div class="session">
     <span class="session-user muted">{{template "icon-account"}}User: {{.User}}</span>
-    {{if eq .Active "account"}}<span aria-current="page">{{template "icon-settings"}}Settings</span>{{else}}<a href="/account">{{template "icon-settings"}}Settings</a>{{end}}
+    {{if eq .Active "settings"}}<span aria-current="page">{{template "icon-settings"}}Settings</span>{{else}}<a href="/settings">{{template "icon-settings"}}Settings</a>{{end}}
     <form class="inline" method="post" action="/logout">
       <button type="submit" class="danger">{{template "icon-sign-out"}}Sign out</button>
     </form>

internal/web/view/templates/settings.html

@@ -9,7 +9,7 @@
 {{if .Error}}<p class="error">{{.Error}}</p>{{end}}
 
 {{if .ShowDMARC}}
-<form method="post" action="/account">
+<form method="post" action="/settings">
 <div class="split">
   <div class="card">
     <h2>Panel credentials</h2>
@@ -80,7 +80,7 @@ this one stays signed in.</p>
   <h2>Panel credentials</h2>
   <p class="muted">These are the credentials for this control panel only.
   Applications keep their own logins and passwords, which are not affected.</p>
-  <form method="post" action="/account">
+  <form method="post" action="/settings">
     <label for="username">Username</label>
     <input id="username" name="username" autocomplete="username"
            autocapitalize="none" spellcheck="false" value="{{.FormUsername}}" required>

internal/web/view/templates/status.html

@@ -3,7 +3,7 @@
 {{define "wide"}}wide{{end}}
 
 {{define "content"}}
-<h1>Server status</h1>
+<h1>Status</h1>
 
 {{if .Flash}}<div class="flash">{{.Flash}}</div>{{end}}
 

internal/web/view/templates/users.html

@@ -1,5 +1,5 @@
 {{define "content"}}
-<h1>Panel users</h1>
+<h1>Users</h1>
 
 {{if .Flash}}<div class="flash">{{.Flash}}</div>{{end}}