Fix 0005853: in CJK languages, 'Report Issue' pages, the width of the left column is too small.

Resolved by making the bug report table width 90% instead of 75% of the width of the brower window. There isn't a fool proof solution for this I can see at the moment, because we put stuff in a table and if strings are too long to fit, you run into trouble...

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@5640 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9