fix details pane version link leads to 403 when no permissions on parent project

[``* `#15274` fix details pane version link leads to 403 when no permissions on parent project``](http://www.openproject.org/work_packages/15274)
Line is too long. [173/99]<br>Space inside { missing.<br>Space inside } missing.<br>Prefer single-quoted strings when you don't need string interpolation or special symbols.