Get all properties to comply with new brand guidelines

[cjyabraham]

(This is a reboot of the old issue now that we have a new design)

With our new brand guidelines, let's get the following to comply:

• https://community.cncf.io/.
• https://jobs.cncf.io/
• https://contribute.cncf.io/, @thetwopct to write PR as per this issue
• https://landscape.cncf.io/
• http://store.cncf.io Redesign Store to align with new brand #589
• emails sent from HubSpot from @KTan1226 and Libby; duplicate some recent emails and modify their design; the team will use these modified emails for future ones; also fix the CNCF template email
• emails sent from the community site
• emails sent as confirmation from the CNCF contact form
• SSO page

[cjyabraham]

here are updated monthly stats for all sites:
main site - 115K users
community groups - 14.7K users
job board - 3.8K users
tech radar - 2.1K users
contribute - 2.1K users
glossary - 1.5K users
store - can’t access analytics

[cjyabraham]

Closing this epic issue as all is completed except for the store and we have a separate issue for that.