Use the correct email address for password reset (#1738)

lib/plausible_web/templates/auth/password_reset_request_success.html.eex

 <div class="bg-white dark:bg-gray-800 max-w-md w-full mx-auto shadow-md rounded px-8 pt-6 pb-8 mb-4 mt-8">
   <h2 class="text-xl font-black dark:text-gray-100">Success!</h2>
   <div class="my-4 leading-tight dark:text-gray-100">
-    We have sent an email with password reset instructions to <b><%= @email %></b> if it exists in our database.
+    We have sent an email with password reset instructions to <b><%= @email %></b> if it exists in our database. To protect your account's security, we cannot confirm whether or not the email address you entered is registered in our database.
   </div>
   <div class="mt-8 text-sm dark:text-gray-100">
-    Didn't receive an email?
+    Didn't receive an email within a few minutes?
   </div>
   <div class="mt-2 text-sm text-gray-600 dark:text-gray-400 leading-tight">
-    Please check your spam folder and
+    You might have used a wrong email address. Please check what email address you used to create your Plausible account and try to reset the password for that address. Do also check your spam folder.
     <%= if Application.get_env(:plausible, :is_selfhost) do %>
-      ask on our <a href="https://github.com/plausible/analytics/discussions" class="text-indigo-500">community-supported forum</a>
+      If you are positive that you are using the correct email address but still aren't receiving the password reset email, please ask on our <a href="https://github.com/plausible/analytics/discussions" class="text-indigo-500">community-supported forum</a>.
     <% else %>
-      contact <a href="mailto:support@plausible.io" class="text-indigo-500">support@plausible.io</a>
+      If you are positive that you are using the correct email address but still aren't receiving the password reset email, please contact <a href="mailto:support@plausible.io" class="text-indigo-500">support@plausible.io</a>.
     <% end %>
-    if the problem persists
   </div>
 </div>