Split out the datagrid styles into a datagrids.less file.

Review Request #7211 — Created April 15, 2015 and submitted — Latest diff uploaded

Information

Review Board
release-2.5.x
bf2636f...

Reviewers

As part of an effort to reduce common.less and to improve styles for
datagrids, this change moves all datagrid-related styles into a new
ui/datagrids.less file.

Tested that all datagrids appeared and functioned as expected.