use html templates to enable async load with requirejs

js/templates/account.html

js/templates/attachment.html

js/templates/attachments.html

js/templates/composer.html

js/templates/folder.html

js/templates/message-list-item.html

js/templates/message-list.html

js/templates/message.html

js/templates/no-search-results-message-list.html

js/templates/settings-account.html

js/templates/settings.html

js/ui.js

js/views/account.js

js/views/attachment.js

js/views/attachments.js

js/views/composer.js

js/views/folder.js

js/views/folders.js

js/views/message.js

js/views/messages.js