Accessibility fixes for confluence-space-directory bundled plugin

Problem Definition

Currently there are a few accessibility issues with the templates for this plugin, it is missing some accessibility code:

• spacedirectory.soy
  Add blank alt text for space logos
  Remove title from space name link and space details button
• space-directory.js (and space-directory-min.js)
  added focus to main content when a label or list item is clicked