* fix: increase spacing in challenge list (#96)
* enh: add button to download user solution on completion modal
* fix: linting
* review: remove dashedName grab from Show.js
can generate dashedName in CompletionModal from challengeMeta
* review: generate download file dashedName from challengeMeta.title
* add className btn-primary-invert
* review: shape files data
we only want key indexhtml contents from files
* review: remove class already defined in global.css
* review: further changes
only grab title from challenge meta
change fiels prop-type to object
remove duplicate class btn-primary-invert from CompletionModal.css
generate download file name using util function dasherize
* review: only show download button if there is something to download
* fix: increase spacing in challenge list (#96)
