docs(ui_auth): Removed extra header and fixed typos (#10248)

* Removed extra header and fixed typo

* ActionCodeSettings, added missing i

* updated action names; fixed typo

* verificatioN typo

* typo: a -> as a

* typo - emaiL

* typos

Author: EnduringBeta

Diff for: packages/firebase_ui_auth/doc/navigation.md

@@ -98,9 +98,7 @@ To learn more about the available actions, check out the [FirebaseUIActions API
 
 ## Other topics
 
-## Other topics
-
-- [EmaiAuthProvider](./providers/email.md) - allows registering and signing using email and password.
+- [EmailAuthProvider](./providers/email.md) - allows registering and signing using email and password.
 - [EmailLinkAuthProvider](./providers/email-link.md) - allows registering and signing using a link sent to email.
 - [PhoneAuthProvider](./providers/phone.md) - allows registering and signing using a phone number
 - [UniversalEmailSignInProvider](./providers/universal-email-sign-in.md) - gets all connected auth providers for a given email.

Diff for: packages/firebase_ui_auth/doc/providers/email-link.md

@@ -39,11 +39,11 @@ See [this doc](https://firebase.google.com/docs/auth/flutter/email-link-auth) fo
 
 ## Using screen
 
-After adding `EmailLinkAuthProvider` to the `FirebaseUIAuth.configureProviders`, `SignInScreen` or `RegisterScren` will have a button that will trigger `EmailLinkSignInAction`, or, if no action provided, will open `EmailLinkSignInScreen` using `Navigator.push`.
+After adding `EmailLinkAuthProvider` to the `FirebaseUIAuth.configureProviders`, `SignInScreen` or `RegisterScreen` will have a button that will trigger `EmailLinkSignInAction`, or, if no action provided, will open `EmailLinkSignInScreen` using `Navigator.push`.
 
 ```dart
 MaterialApp(
-  intiialRoute: '/login',
+  initialRoute: '/login',
   routes: {
     '/login': (context) {
       return SignInScreen(
@@ -248,7 +248,7 @@ class _CustomEmailLinkSignInState extends State<CustomEmailLinkSignIn>
 
 ## Other topics
 
-- [EmaiAuthProvider](./email.md) - allows registering and signing using email and password.
+- [EmailAuthProvider](./email.md) - allows registering and signing using email and password.
 - [Email verification](./email-verification.md)
 - [PhoneAuthProvider](./phone.md) - allows registering and signing using a phone number
 - [UniversalEmailSignInProvider](./universal-email-sign-in.md) - gets all connected auth providers for a given email.

Diff for: packages/firebase_ui_auth/doc/providers/email-verification.md

@@ -26,12 +26,12 @@ class App extends StatelessWidget {
         },
         '/profile': (context) => ProfileScreen(),
         '/verify-email': (context) => EmailVerificationScreen(
-          actionCodeSettings: ActionCodeSettngs(...),
+          actionCodeSettings: ActionCodeSettings(...),
           actions: [
-            EmailVerified(() {
+            EmailVerifiedAction(() {
               Navigator.pushReplacementNamed(context, '/profile');
             }),
-            Cancel((context) {
+            AuthCancelledAction((context) {
               FirebaseUIAuth.signOut(context: context);
               Navigator.pushReplacementNamed(context, '/');
             }),
@@ -45,7 +45,7 @@ class App extends StatelessWidget {
 
 Once opened, it triggers a verification email to be sent and will wait for a dynamic link to be received by the app (on supported platforms).
 
-## Using `EmailVerificatioController`
+## Using `EmailVerificationController`
 
 If you want to build a custom email verification screen, you could use `EmailVerificationController`:
 
@@ -103,7 +103,7 @@ class _MyEmailVerificationScreenState extends State<MyEmailVerificationScreen> {
 
 ## Other topics
 
-- [EmaiAuthProvider](./email.md) - allows registering and signing using email and password.
+- [EmailAuthProvider](./email.md) - allows registering and signing using email and password.
 - [EmailLinkAuthProvider](./email-link.md) - allows registering and signing using a link sent to email.
 - [PhoneAuthProvider](./phone.md) - allows registering and signing using a phone number
 - [UniversalEmailSignInProvider](./universal-email-sign-in.md) - gets all connected auth providers for a given email.

Diff for: packages/firebase_ui_auth/doc/providers/email.md

@@ -2,7 +2,7 @@
 
 ## Configuration
 
-To support email a provider, first ensure that the "Email/Password" provider is
+To support email as a provider, first ensure that the "Email/Password" provider is
 enabled in the [Firebase Console](https://console.firebase.google.com/project/_/authentication/providers):
 
 ![Enable Email/Password Provider](../images/ui-email-provider.jpg)