setup: add note about changed url

just mentioned that you should check the URL before refreshing if you
changed host/port/subfolder/etc.

html/setup.html

@@ -557,7 +557,7 @@
             <div class="card sectioned ~neutral @low unfocused">
                 <section class="section flex flex-col gap-2 justify-center items-center">
                     <span class="heading">{{ .lang.EndPage.finished }}</span>
-                    <p class="content">{{ .lang.EndPage.restartMessage }}</p>
+                    <p class="content">{{ .lang.EndPage.restartMessage }} {{ .lang.EndPage.urlChangedNotice }}</p>
                 </section>
                 <section class="section w-full ~neutral footer flex flex-row justify-center items-center gap-2">
                     <span class="button ~neutral @low back">{{ .lang.Strings.back }}</span>

lang/setup/en-us.json

@@ -34,6 +34,7 @@
     "endPage": {
         "finished": "Finished!",
         "restartMessage": "Features like Discord/Telegram/Matrix bots, custom Markdown messages, and a user-accessible \"My Account\" page can be found in Settings, so make sure to give it a browse. Click below to restart, then refresh the page.",
+        "urlChangedNotice": "If you've changed the host, port, subfolder etc. that jfa-go is hosted on, check the URL is right.",
         "refreshPage": "Refresh"
     },
     "language": {