styles jobs pages, adds edit page

- restyled a lot of page, mostly getting rid of the tan background and just making it white ... needs a bit more styling on the homepage because of that, but want to get your input before finishing that bit
- seed.rb has only 2 jobs stuff, so needa do research and fill that up, as well as grabbing all the descriptions
- scss needs some refactoring ... it's very repetitive. gonna rethink our classes a bit to be more reusable.