feat: Added documentation for OHIF-v3 (#2450)

* Added docs with new screenshots

* Added doc to architecture

* Added documentations to various extension modules

* Added more documentation to modes

* Added docs to managers

* Added docs for services

* Fixed deployment docs

* Added white labelling documentation

* Added i18n docs and measurement export

docs/latest/viewer/index.md

@@ -2,8 +2,6 @@
 
 The OHIF Viewing Platform strives to be highly configurable and extensible. This
 makes it easier for our community members to keep their "secret sauce" private,
-and incentivises contributions back to the platform. The `@ohif/viewer` project
+and incentives contributions back to the platform. The `@ohif/viewer` project
 of the platform is the lynchpin that combines everything to create our
 application.
-
-- When configuration and themeing aren't enough