Service Center chat room: Easier message search

The Service Center chat room adds Search messages. After clicking a conversation, you can search for a keyword right away and jump between previous and next results to quickly locate relevant messages, with no need to scroll through them one by one, making it faster for agents to find messages.

Improvements

• Improved the login flow for forms and approved pages: they now go straight to the LINE Login screen, saving one step
• LINE Group Chat can now search by group ID, and you can open a specific group's chat room directly from a link

Fixes

• When switching a large number of members' segmented rich menus, some members might briefly see the old menu