test: update footer snapshots to always show account name

Snapshots now reflect the new behaviour where the account indicator
is always visible (including "default"), matching the footer.rs change.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/snapshots/footer__footer_chat_list.snap

@@ -1,5 +1,6 @@
 ---
 source: tests/footer.rs
+assertion_line: 22
 expression: output
 ---
- Инициализация TDLib...
+ [default] Инициализация TDLib...

tests/snapshots/footer__footer_network_connecting.snap

@@ -1,5 +1,6 @@
 ---
 source: tests/footer.rs
+assertion_line: 90
 expression: output
 ---
- ⏳  Подключение... | Инициализация TDLib...
+ [default] ⏳  Подключение... | Инициализация TDLib...

tests/snapshots/footer__footer_network_connecting_proxy.snap

@@ -1,5 +1,6 @@
 ---
 source: tests/footer.rs
+assertion_line: 73
 expression: output
 ---
- ⏳  Прокси... | Инициализация TDLib...
+ [default] ⏳  Прокси... | Инициализация TDLib...

tests/snapshots/footer__footer_network_waiting.snap

@@ -1,5 +1,6 @@
 ---
 source: tests/footer.rs
+assertion_line: 56
 expression: output
 ---
- ⚠ Нет сети | Инициализация TDLib...
+ [default] ⚠ Нет сети | Инициализация TDLib...

tests/snapshots/footer__footer_open_chat.snap

@@ -1,5 +1,6 @@
 ---
 source: tests/footer.rs
+assertion_line: 39
 expression: output
 ---
- Инициализация TDLib...
+ [default] Инициализация TDLib...

tests/snapshots/footer__footer_search_mode.snap

@@ -1,5 +1,6 @@
 ---
 source: tests/footer.rs
+assertion_line: 107
 expression: output
 ---
- Инициализация TDLib...
+ [default] Инициализация TDLib...