Changes width of `Commit Date` column on `Code` > `Commits` tab.
Changes width of `Commit Date` column on `Code` > `Commits` tab.

Cause:
`Commit Date` column is narrow in width so its contents can not be fitted to one line.

Solution:
`Commit Date` width is stretched.

Private-issue: 1544

naver/yobi,bloodybear/yona,bloodybear/yona,naver/yobi,bloodybear/yona,yona-projects/yona,ahb0327/yobi,doortts/forked-for-history,ihoneymon/yobi,ahb0327/yobi,doortts/fork-yobi,oolso/yobi,yona-projects/yona,doortts/fork-yobi,doortts/fork-yobi,brainagenet/yobi,ihoneymon/yobi,violetag/demo,ahb0327/yobi,doortts/fork-yobi,naver/yobi,bloodybear/yona,Limseunghwan/oss,ihoneymon/yobi,brainagenet/yobi,oolso/yobi,doortts/forked-for-history,Limseunghwan/oss,yona-projects/yona,yona-projects/yona,brainagenet/yobi,violetag/demo,doortts/forked-for-history,Limseunghwan/oss,oolso/yobi