update basic sign in / sign out

src/common/langs/en.js

@@ -4,9 +4,33 @@ export default {
             'title': 'lightweight account book'
         }
     },
+    'error': {
+        'user id is invalid': 'User id is invalid',
+        'username is empty': 'Username is empty',
+        'email is empty': 'Email is empty',
+        'password is empty': 'Password is empty',
+        'user not found': 'User not found',
+        'password is wrong': 'Password is wrong',
+        'username already exists': 'Username already exists',
+        'email already exists': 'Email already exists',
+        'login name is invalid': 'Login name is invalid',
+        'login name or password is invalid': 'Login name or password is invalid',
+        'login name or password is wrong': 'Login name or password is wrong'
+    },
     'Home': 'Home',
     'Journals': 'Journals',
     'Accounts': 'Accounts',
     'Charts': 'Charts',
-    'Settings': 'Settings'
-}
+    'Settings': 'Settings',
+    'Back': 'Back',
+    'Username': 'Username',
+    'Username or Email': 'Username or Email',
+    'Password': 'Password',
+    'Log In': 'Log In',
+    'Don\'t have an account?': 'Don\'t have an account?',
+    'Sign up': 'Sign up',
+    'Have problem with login?': 'Have problem with login?',
+    'Forget Password': 'Forget Password',
+    'Unable to login': 'Unable to login',
+    'Logout': 'Logout'
+};