Add ability to send Telegram notifications silently.

src/components/notifications/Telegram.vue

@@ -28,6 +28,15 @@
                 <a :href="telegramGetUpdatesURL('withToken')" target="_blank" style="word-break: break-word;">{{ telegramGetUpdatesURL("masked") }}</a>
             </p>
         </div>
+
+        <div class="form-check form-switch">
+            <input v-model="$parentnotification.telegramSendSilently" class="form-check-input" type="checkbox">
+            <label class="form-check-label">{{ $t("Send Silently") }}</label>
+        </div>
+
+        <div class="form-text">
+            {{ $t("telegramSendSilentlyDescription") }}
+        </div>
     </div>
 </template>
 

src/languages/en.js

@@ -214,6 +214,8 @@ export default {
     "Chat ID": "Chat ID",
     supportTelegramChatID: "Support Direct Chat / Group / Channel's Chat ID",
     wayToGetTelegramChatID: "You can get your chat ID by sending a message to the bot and going to this URL to view the chat_id:",
+    "Send Silently": "Send Silently",
+    telegramSendSilentlyDescription: "Sends the message silently. Users will receive a notification with no sound.",
     "YOUR BOT TOKEN HERE": "YOUR BOT TOKEN HERE",
     chatIDNotFound: "Chat ID is not found; please send a message to this bot first",
     webhook: "Webhook",