feat(admin): improve navigation UI and move logs to drawer

- Add icons to all navigation tabs in admin panel
- Rename 'Telegram Покупатели' tab to 'Покупатели'
- Move logs view from navigation tab to Drawer component
- Add logs button in TopLead component next to cache reset button
- Group logs and cache reset buttons in ButtonGroup
- Remove logs route from router

frontend/admin/src/App.vue

@@ -3,51 +3,69 @@
     <TopLead/>
     <ul class="nav nav-tabs">
       <li :class="{active: route.name === 'general'}">
-        <RouterLink :to="{name: 'general'}">Общие</RouterLink>
+        <RouterLink :to="{name: 'general'}">
+          <i class="fa fa-cog"></i> Общие
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'telegram'}">
-        <RouterLink :to="{name: 'telegram'}">Telegram</RouterLink>
+        <RouterLink :to="{name: 'telegram'}">
+          <i class="fa fa-paper-plane"></i> Telegram
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'metrics'}">
-        <RouterLink :to="{name: 'metrics'}">Метрика</RouterLink>
+        <RouterLink :to="{name: 'metrics'}">
+          <i class="fa fa-line-chart"></i> Метрика
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'store'}">
-        <RouterLink :to="{name: 'store'}">Витрина</RouterLink>
+        <RouterLink :to="{name: 'store'}">
+          <i class="fa fa-shopping-bag"></i> Витрина
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'texts'}">
-        <RouterLink :to="{name: 'texts'}">Тексты</RouterLink>
+        <RouterLink :to="{name: 'texts'}">
+          <i class="fa fa-file-text"></i> Тексты
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'orders'}">
-        <RouterLink :to="{name: 'orders'}">Заказы</RouterLink>
+        <RouterLink :to="{name: 'orders'}">
+          <i class="fa fa-shopping-cart"></i> Заказы
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'mainpage'}">
-        <RouterLink :to="{name: 'mainpage'}">Главная страница</RouterLink>
+        <RouterLink :to="{name: 'mainpage'}">
+          <i class="fa fa-home"></i> Главная страница
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'formbuilder'}">
-        <RouterLink :to="{name: 'formbuilder'}">Форма заказа</RouterLink>
+        <RouterLink :to="{name: 'formbuilder'}">
+          <i class="fa fa-wpforms"></i> Форма заказа
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'customers'}">
-        <RouterLink :to="{name: 'customers'}">Telegram Покупатели</RouterLink>
+        <RouterLink :to="{name: 'customers'}">
+          <i class="fa fa-users"></i> Покупатели
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'pulse'}">
-        <RouterLink :to="{name: 'pulse'}">TeleCart Pulse</RouterLink>
-      </li>
-
-      <li :class="{active: route.name === 'logs'}">
-        <RouterLink :to="{name: 'logs'}">Журнал событий</RouterLink>
+        <RouterLink :to="{name: 'pulse'}">
+          <i class="fa fa-heartbeat"></i> TeleCart Pulse
+        </RouterLink>
       </li>
 
       <li :class="{active: route.name === 'cron'}">
-        <RouterLink :to="{name: 'cron'}">CRON</RouterLink>
+        <RouterLink :to="{name: 'cron'}">
+          <i class="fa fa-clock-o"></i> CRON
+        </RouterLink>
       </li>
     </ul>