Conflicts:
	public/app/features/dashboard/submenu/submenu.ts

* create descriptions and styles for share dropdown

* Updating actual modal layout for Sharing

* Updated the modals to follow the new styles, fixed the wrapping issue on the main menu. Standardized buttons.

fix(templating): fixed issue with detecting data source variable in other template variable definition, fixes #5165

closes #5167

fix(templating): fixed issue with nested template variables and multi select, the child variable selection state is now updated like single select variables, so if none matches the first option is selected, fixes #4861

Conflicts:
	package.json

Commit adds missing option `Read-Only Editor` to `auto_assign_org_role` description.

Conflicts:
	pkg/api/frontendsettings.go