chore: Added translation for the start command, code link made as a button

commands/start.py

@@ -1,28 +1,42 @@
 from aiogram import types, Router
 from aiogram.filters import CommandStart
+import re
 
-from bot import bot
+from bot import bot, db
+from i18n.localization import I18n
 
 router = Router()
+i18n = I18n()
+
+def escape_md_v2(text: str) -> str:
+    return re.sub(r'([_*\[\]()~#+\-=|{}.!\\])', r'\\\1', text)
 
 @router.message(CommandStart())
 async def start(message: types.Message) -> None:
     get_bot = await bot.get_me()
 
-    keyboard = types.InlineKeyboardMarkup(inline_keyboard=[
+    data = await db.fetch(
-        [
+        'SELECT lang FROM users WHERE user_id = $1',
-            types.InlineKeyboardButton(
+        message.from_user.id
-                text="Source Code",
-                url="https://github.com/redume/shirino"
     )
+
+    locale = i18n.get_locale(data.get('lang'))
+
+    raw_template = locale.get("start_message")
+    raw_text = raw_template.format(bot_username=get_bot.username)
+    text = escape_md_v2(raw_text)
+
+    button_text = locale.get("source_code_button")
+
+    keyboard = types.InlineKeyboardMarkup(inline_keyboard=[
+        [types.InlineKeyboardButton(
+            text=button_text,
+            url="https://github.com/redume/shirino")
         ]
     ])
 
     await message.reply(
-        'Shirino is a telegram bot for converting fiat or cryptocurrency. '
+        text,
-        'The example of use occurs via inline query:\n'
+        parse_mode="MarkdownV2",
-        f'`@{get_bot.username} USD RUB` \n'
-        f'`@{get_bot.username} 12 USD RUB` \n\n',
-        parse_mode='markdown',
         reply_markup=keyboard
     )