Extend button is not available during session timeout countdown in Japanese localization

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 DXP SP1, Master
• Fix Version/s: 7.0.0 DXP FP2, 7.0.0 DXP SP1, 7.0.3 CE GA4, 7.1.X, Master
• Component/s: Portal Configuration
• Labels:
  • liferay-digital-enterprise-70-sp1
  • liferay-fixpack-de-2-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/42255

Description:
If Japanese localization has been set, and the session is about to expire, a session expiration warning displays on the top right corner. However, in the Japanese localization, although the message indicates that the user should click the "Extend" button to extend the session, the "Extend" button is not present.

Steps to reproduce:
1. Forcefully set session timeout to a low value in the web.xml:

	<session-config>
		<session-timeout>2</session-timeout>
		<cookie-config>
			<http-only>true</http-only>
		</cookie-config>
	</session-config>

I also set session.timeout=2 in portal-ext.properties

2. Start up the Application Server
3. Change localization to Japanese (easy way is to append /ja after the hostname - example: http://localhost:8080/ja)
4. Sign into [e-mail]
5. Wait 2 minutes

Expected Result:
Session timeout warning will appear in 2 minutes, and have a clickable Extend button.

Actual Results:
Session timeout warning will appear in 2 minutes, but will not have a clickable Extend button despite the message indicating that there is a Extend button:

警告警告! 未操作の時間が一定の時間を経過したため、 00:00:53 後にセッションが無効になります。3 分セッションを延長するには「延長」ボタンをクリックしてください