scroll to center of the canvas page on its creation

[mohit-marathe]

Change-Id: I6cdf59332a0549839632c842e64352a4b19f8f37

• Target version: master

Summary

Checklist

• [ ] I have run make prettier-write and formatted the code.
• [x] All commits have Change-Id
• [ ] I have run tests with make check
• [x] I have issued make run and manually verified that everything looks okay
• [ ] Documentation (manuals or wiki) has been updated or is not required