almost complete telegram user verification

When signing up, the user is given a pin code which they send to a
telegram bot. This provides user verification, but more importantly
allows the bot to message the user, as the Telegram API requires the
user to interact with the bot before it can do the opposite.

The bot should recognize the correct language, but a /lang command is
also provided to change it.

The verification process is pretty much functional but ui is still
broken, and it isn't properly integrated yet.

html/form.html

@@ -19,6 +19,24 @@
                 <p class="content mb-1">{{ .strings.confirmationRequiredMessage }}</p>
             </div>
         </div>
+        {{ if .telegramEnabled }}
+        <div id="modal-telegram" class="modal">
+            <div class="modal-content card">
+                <span class="heading mb-1">{{ .strings.linkTelegram }}</span>
+                <p class="content mb-1">{{ .strings.sendPIN }}</p>
+                <h1 class="ac">{{ .telegramPIN }}</h1>
+                <a class="subheading link-center" href="{{ .telegramURL }}" target="_blank">
+                    <span class="shield ~info mr-1">
+                        <span class="icon">
+                            <i class="ri-telegram-line"></i>
+                        </span>
+                    </span>
+                    &#64;{{ .telegramUsername }}
+                </a>
+                <span class="button ~info !normal full-width center mt-1" id="telegram-waiting">.</span>
+            </div>
+        </div>
+        {{ end }}
         <span class="dropdown" tabindex="0" id="lang-dropdown">
             <span class="button ~urge dropdown-button">
                 <i class="ri-global-line"></i>
@@ -29,6 +47,7 @@
                 </div>
             </div>
         </span>
+        <div id="notification-box"></div>
         <div class="page-container">
             <div class="card ~neutral !low">
                 <div class="row baseline">
@@ -48,7 +67,9 @@
                             
                             <label class="label supra" for="create-email">{{ .strings.emailAddress }}</label>
                             <input type="email" class="input ~neutral !high mt-half mb-1" placeholder="{{ .strings.emailAddress }}" id="create-email" aria-label="{{ .strings.emailAddress }}" value="{{ .email }}">
-                            
+                            {{ if .telegramEnabled }}
+                            <span class="button ~info !normal full-width center" id="link-telegram">{{ .strings.linkTelegram }}</span>
+                            {{ end }}
                             <label class="label supra" for="create-password">{{ .strings.password }}</label>
                             <input type="password" class="input ~neutral !high mt-half mb-1" placeholder="{{ .strings.password }}" id="create-password" aria-label="{{ .strings.password }}">