fixup! Add full width for mailing list

Signed-off-by: greta <[email protected]>

tests/Unit/Controller/PageControllerTest.php

@@ -168,7 +168,7 @@ public function testIndex(): void {
 		$account1 = $this->createMock(Account::class);
 		$account2 = $this->createMock(Account::class);
 		$mailbox = $this->createMock(Mailbox::class);
-		$this->preferences->expects($this->exactly(8))
+		$this->preferences->expects($this->exactly(9))
 			->method('getPreference')
 			->willReturnMap([
 				[$this->userId, 'account-settings', '[]', json_encode([])],
@@ -179,6 +179,7 @@ public function testIndex(): void {
 				[$this->userId, 'search-priority-body', 'false', 'false'],
 				[$this->userId, 'start-mailbox-id', null, '123'],
 				[$this->userId, 'tag-classified-messages', 'true', 'true'],
+				[$this->userId, 'layout-mode', 'vertical-split', 'vertical-split'],
 			]);
 		$this->accountService->expects($this->once())
 			->method('findByUserId')
@@ -323,6 +324,7 @@ public function testIndex(): void {
 			'start-mailbox-id' => '123',
 			'tag-classified-messages' => 'true',
 			'search-priority-body' => 'false',
+			'layout-mode' => 'vertical-split',
 		]);
 		$csp = new ContentSecurityPolicy();
 		$csp->addAllowedFrameDomain('\'self\'');