DP-45023: Google Translate widget updates for accessibility

[tfleming-ma]

Description

• New modal Twig template based on Figma design and built from example code
• New google-translate Twig template based on Figma design and built from example code
• Added translate SVG icon
• Various changes to remove code related to old Google Translate widget that did things like add top to the body
• Made best effort to use new spacing and color tokens, used existing color tokens when available

Related Issue / Ticket

• JIRA issue

Additional Notes:

• The modal only has options for the main button you click in the JSON configuration. Other design elements for the modal, such as the icons, the button group, and content are rolled into the Google Translate Twig template, but I included styles in the Modal template's SCSS that will style the button group and icons based on type, such as info, warning, etc
• The new languages.json includes all languages that are available in openmass's theme configuration

Impacted Areas in Application

• Header, pages, utility nav

@todo

• Create the React components for the modal and Google Translate
• Needs changelog
• The modal's JS will likely only work for one modal on the page. I added a todo note in code for this as well.
• I don't see a way of hiding the Google Translate spinner that appears. It looks like Google intentionally uses random classnames to prevent hiding of the spinner.
• The modal currently hides on mobile. It is visible after I click "Language" in the mobile menu if you expand the page width. Needs investigation.