Add [future]/[expired] to future/expired blog posts

[pradyunsg]

Hugo supports building blog-posts that are future-dated/expired posts, with:

  -E, --buildExpired           include expired content
  -F, --buildFuture            include content with publishdate in the future

It would be neat if this theme could add the [future] and [expired] label to them, similar to the [draft] label! :)

[adityatelange]

Hi @pradyunsg , I am thinking of using icons instead of text to represent the status.

This is to overcome translations for these strings in future.

• Draft - https://fonts.google.com/icons?selected=Material%20Symbols%20Outlined%3Aedit_note%3AFILL%400%3Bwght%40400%3BGRAD%400%3Bopsz%4048
  

• Expired - https://fonts.google.com/icons?selected=Material%20Symbols%20Outlined%3Aevent_busy%3AFILL%400%3Bwght%40400%3BGRAD%400%3Bopsz%4048
  

• Future - https://fonts.google.com/icons?selected=Material%20Symbols%20Outlined%3Aevent_upcoming%3AFILL%400%3Bwght%40400%3BGRAD%400%3Bopsz%4048
  

licensing: https://developers.google.com/fonts/faq#can_i_use_any_font_in_a_commercial_product

Originally posted by @adityatelange in #1140 (comment)