Fix the grammar in the login error message

src/login/login.ts

@@ -136,7 +136,7 @@
     let m2: string
     if (err instanceof UnauthorizedError) {
       m2 =
-        'Ooops - you are not authenticated (properly logged in) to for me to read your preference file.  Try loggin out and logging in?'
+        'Oops — you are not authenticated (properly logged in), so SolidOS cannot read your preferences file. Try logging out and then logging back in.'
       alert(m2)
     } else if (err instanceof CrossOriginForbiddenError) {
       m2 = `Unauthorized: Assuming preference file blocked for origin ${window.location.origin}`
@@ -636,7 +636,7 @@
         me = null
         try {
           alert(message)
         } catch (e) {
           window.alert(message)
         }
         box.refresh()
@@ -716,7 +716,7 @@
           await fetch(openidConfiguration.end_session_endpoint, { credentials: 'include' })
         }
       }
     } catch (err) {
       // Do nothing
     }
   }