Move global "Sign out" out of the current account row (#4941)

* Rename logout to logoutEveryAccount

* Add logoutCurrentAccount()

* Make all "Log out" buttons refer to current account

Each of these usages is completely contextual and refers to a specific account.

* Add Sign out of all accounts to Settings

* Move single account Sign Out below as well

* Prompt on account removal

* Add Other Accounts header to reduce ambiguity

* Spacing fix

---------

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

src/screens/Deactivated.tsx

@@ -38,7 +38,7 @@ export function Deactivated() {
   const {setShowLoggedOut} = useLoggedOutViewControls()
   const hasOtherAccounts = accounts.length > 1
   const setMinimalShellMode = useSetMinimalShellMode()
-  const {logout} = useSessionApi()
+  const {logoutCurrentAccount} = useSessionApi()
   const agent = useAgent()
   const [pending, setPending] = React.useState(false)
   const [error, setError] = React.useState<string | undefined>()
@@ -72,8 +72,8 @@ export function Deactivated() {
       // So we change the URL ourselves. The navigator will pick it up on remount.
       history.pushState(null, '', '/')
     }
-    logout('Deactivated')
-  }, [logout])
+    logoutCurrentAccount('Deactivated')
+  }, [logoutCurrentAccount])
 
   const handleActivate = React.useCallback(async () => {
     try {