Add localizations

lib/views/sign_up.dart

@@ -3,6 +3,7 @@ import 'dart:math';
 
 import 'package:famedlysdk/famedlysdk.dart';
 import 'package:fluffychat/components/matrix.dart';
+import 'package:fluffychat/i18n/i18n.dart';
 import 'package:fluffychat/utils/app_route.dart';
 import 'package:fluffychat/views/login.dart';
 import 'package:fluffychat/views/sign_up_password.dart';
@@ -37,7 +38,7 @@ class _SignUpState extends State<SignUp> {
   void signUpAction(BuildContext context) async {
     MatrixState matrix = Matrix.of(context);
     if (usernameController.text.isEmpty) {
-      setState(() => usernameError = "Please choose a username.");
+      setState(() => usernameError = I18n.of(context).pleaseChooseAUsername);
     } else {
       setState(() => usernameError = null);
     }
@@ -60,12 +61,13 @@ class _SignUpState extends State<SignUp> {
       print("[Sign Up] Check server...");
       setState(() => loading = true);
       if (!await matrix.client.checkServer(homeserver)) {
-        setState(() => serverError = "Homeserver is not compatible.");
+        setState(
+            () => serverError = I18n.of(context).homeserverIsNotCompatible);
 
         return setState(() => loading = false);
       }
     } catch (exception) {
-      setState(() => serverError = "Connection attempt failed!");
+      setState(() => serverError = I18n.of(context).connectionAttemptFailed);
       return setState(() => loading = false);
     }
 
@@ -94,6 +96,7 @@ class _SignUpState extends State<SignUp> {
     return Scaffold(
       appBar: AppBar(
         title: TextField(
+          autocorrect: false,
           controller: serverController,
           decoration: InputDecoration(
               icon: Icon(Icons.domain),
@@ -125,8 +128,9 @@ class _SignUpState extends State<SignUp> {
                       Icons.close,
                       color: Colors.red,
                     ),
-              title: Text(
-                  avatar == null ? "Set a profile picture" : "Discard picture"),
+              title: Text(avatar == null
+                  ? I18n.of(context).setAProfilePicture
+                  : I18n.of(context).discardPicture),
               onTap: avatar == null
                   ? setAvatarAction
                   : () => setState(() => avatar = null),
@@ -137,12 +141,13 @@ class _SignUpState extends State<SignUp> {
                 child: Icon(Icons.account_box),
               ),
               title: TextField(
+                autocorrect: false,
                 controller: usernameController,
                 onSubmitted: (s) => signUpAction(context),
                 decoration: InputDecoration(
-                    hintText: "Username",
+                    hintText: I18n.of(context).username,
                     errorText: usernameError,
-                    labelText: "Choose a username"),
+                    labelText: I18n.of(context).chooseAUsername),
               ),
             ),
             SizedBox(height: 20),
@@ -157,7 +162,7 @@ class _SignUpState extends State<SignUp> {
                 child: loading
                     ? CircularProgressIndicator()
                     : Text(
-                        "Sign up",
+                        I18n.of(context).signUp,
                         style: TextStyle(color: Colors.white, fontSize: 16),
                       ),
                 onPressed: () => signUpAction(context),
@@ -166,7 +171,7 @@ class _SignUpState extends State<SignUp> {
             Center(
               child: FlatButton(
                 child: Text(
-                  "Already have an account?",
+                  I18n.of(context).alreadyHaveAnAccount,
                   style: TextStyle(
                     decoration: TextDecoration.underline,
                     color: Colors.blue,