Make onboarding optional, able to be ignored on desktop (#6564)

* Remove unused `telemetryLoader`

* Remove onboarding redirect behavior

* Allow subRoute to be passed to navigateToProject

* Replace warning dialog routes with toasts

* Wire up new utilities and toasts to UI components

* Add home sidebar buttons for tutorial flow

* Rename menu item

* Add flex-1 so home-layout fills available space

* Remove onboarding avatar tests, they are becoming irrelevant

* Consolidate onboarding tests to one longer one

and update it to not use pixel color checks, and use fixtures.

* Shorten warning toast button text

* tsc, lint, and circular deps

* Update circular dep file

* Fix mistakes made in circular update tweaking

* One more dumb created circular dep

* Update src/routes/Onboarding/utils.tsx

Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com>

* Fix narrow screen home layout breaking

* fix: kevin, navigation routes fixed

* fix: filename parsing is correct now for onboarding with the last file sep

* Fix e2e test state checks that are diff on Linux

* Create onboarding project entirely through systemIOMachine

* Fix Windows path construction

---------

Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com>
Co-authored-by: Kevin Nadro <kevin@zoo.dev>

src/components/LowerRightControls.tsx

@@ -1,5 +1,4 @@
-import { Link, useLocation } from 'react-router-dom'
-
+import { Link, type NavigateFunction, useLocation } from 'react-router-dom'
 import { CustomIcon } from '@src/components/CustomIcon'
 import { HelpMenu } from '@src/components/HelpMenu'
 import { NetworkHealthIndicator } from '@src/components/NetworkHealthIndicator'
@@ -12,8 +11,10 @@ import { APP_VERSION, getReleaseUrl } from '@src/routes/utils'
 
 export function LowerRightControls({
   children,
+  navigate = () => {},
 }: {
   children?: React.ReactNode
+  navigate?: NavigateFunction
 }) {
   const location = useLocation()
   const filePath = useAbsoluteFilePath()
@@ -72,7 +73,7 @@ export function LowerRightControls({
         {!location.pathname.startsWith(PATHS.HOME) && (
           <NetworkHealthIndicator />
         )}
-        <HelpMenu />
+        <HelpMenu navigate={navigate} />
       </menu>
     </section>
   )