MM 50960 - Add company name and invite members pages to preparing-workspace for self-hosted (#22838)

* MM-50960 - store system organization name

* restore the preparing workspace plugins and invite screens

* add back the page lines for the design

* add lines back and organize styles

* set back documentation to monorepo style and disable board as a product

* fix organization link and style skip button

* create team on organization name screen continue button click

* make sure there are not already created team and if so just update team name

* update the team display name if team has already been created

* cover error scenarios during team creation

* add pr feedback and add a couple of unit tests

* fix translation server error; make sure only update display name if it has changed in the form

* temp advances

* rewrite unit tests using react-testing library; fix unit tests

* fix translations

* make sure the launching workspace finish in cloud installations

* remove redundant validation

* fix unit tests

* remove unintended config value left after merge conflict

webapp/platform/types/src/setup.ts

@@ -2,5 +2,6 @@
 // See LICENSE.txt for license information.
 
 export type CompleteOnboardingRequest = {
+    organization: string;
     install_plugins: string[];
 }