Summary:
Editor line number is scrollable horizontally
This patch fix the line number scrolling
ref T4276
Test Plan:
1. Open enventor
2. Scroll the scrollerbar horizontally in edc_editor
3. check that the line number entry is fixed
Reviewers: Jaehyun_Cho
Maniphest Tasks: T4276
Differential Revision: https://phab.enlightenment.org/D4901