feat: add last contributor to each document (#980)

* add contributor list to each document

* handle case where there is no github repo

* Move to v1

* Revert "handle case where there is no github repo"

This reverts commit a76a887901.

* Revert "add contributor list to each document"

This reverts commit c0cc79f995.

* Add last updated by field

* -Include enableUpdateBy in the config
- Rename css class to be more general

* Fix lint

* Refactor :
- s/getGitlastupdated/getGitLastUpdatedTime
- refactor part in getGitLastUpdated[Time|By] that overlaps
- remove getAuthorInformation

* -Modify the display logic
-Refactor the utils, combine lastupdatedtime and lastupdatedby
-Replace the test

* Modify docs based on the display change

* Update docs for url and baseurl

For more clarity and to make relationship more clear

* Update support for Web App Manifest (#1046)

* misc: update nits

* misc: update nits

v1/lib/static/css/main.css

@@ -1536,7 +1536,7 @@ input::placeholder {
   }
 }
 
-.docLastUpdateTimestamp {
+.docLastUpdate {
   font-size: 13px;
   font-style: italic;
   margin: 20px 0;