Requests - Page Styling

This merge request consist of request view changes suggested. 

* Categories moved to top ( above the header )
* Bid partial split to two partials - `_bids.html.erb` and `_bids_form.html.erb`
* bid form sent to the right hand side ( which uses half of the container width )
* text ( markdown ) below title
* User info below text ( markdown )
* bids on bottom ( left half )
* Distance - not tested - added a conditional to show distances < 300.

For the creator, the bid form will not be shown. It might be a good idea to put the bids ( list ) to the right handside.

Note: A bid was made with another account, but it didn't show up in the list.