Move workspace fragment to auth module

app/src/main/java/org/futo/circles/model/PeopleListItem.kt

...a/org/futo/circles/auth/feature/sign_up/SignUpFragment.kt

...uth/feature/workspace/ConfigureWorkspaceDialogFragment.kt

...les/auth/feature/workspace/ConfigureWorkspaceViewModel.kt

...ure/workspace/data_source/ConfigureWorkspaceDataSource.kt

...ture/workspace/data_source/SpacesTreeAccountDataSource.kt

...es/auth/feature/workspace/list/WorkspaceTaskViewHolder.kt

.../auth/feature/workspace/list/WorkspaceTasksListAdapter.kt

...rc/main/java/org/futo/circles/auth/model/WorkspaceTask.kt

...c/main/res/layout/dialog_fragment_configure_workspace.xml

...rc/main/res/layout/list_item_mandatory_workspace_task.xml

...src/main/res/layout/list_item_optional_workspace_task.xml

auth/src/main/res/values/strings.xml

core/src/main/res/values/strings.xml