Increase max bubble edu title height

Allow the title text in the bubble education views to take up to 2 lines

Fix: 380318209
Flag: com.android.wm.shell.enable_bubble_bar
Test: manual
       - set language and region to e.g. Germany
       - force bubble stack and manage education views
       - send a bubble with auto-expand
       - observe stack education title is fully visible
       - collapse and expand the bubble bar
       - observe manage education title is fully visible
Change-Id: I3b9a7636ac1ed6a7a7fb42c1220f8c99163d47dc