Tidy up minor bootstrap styling issues

Description

Tidy up minor bootstrap issues

1. Positioning of search box icon on Explore page
2. Add a larger border radius to buttons so they don't look so square
3. Change the styling of the + Add a new language button so it isn't so bold

Assignee

Kathryn Gough

Reporter

Kathryn Gough

Labels

Tested Version/s

None

Components

Sprint

None

Fix versions

Priority

Medium
Configure