Add ability to change user's email

src/i18n/en.json

@@ -217,6 +217,9 @@
     "cGreen": "Green (Retweet)",
     "cOrange": "Orange (Favorite)",
     "cRed": "Red (Cancel)",
+    "change_email": "Change Email",
+    "change_email_error": "There was an issue changing your email.",
+    "changed_email": "Email changed successfully!",
     "change_password": "Change Password",
     "change_password_error": "There was an issue changing your password.",
     "changed_password": "Password changed successfully!",
@@ -275,6 +278,7 @@
     "use_contain_fit": "Don't crop the attachment in thumbnails",
     "name": "Name",
     "name_bio": "Name & Bio",
+    "new_email": "New Email",
     "new_password": "New password",
     "notification_visibility": "Types of notifications to show",
     "notification_visibility_follows": "Follows",

src/i18n/ru.json

@@ -127,6 +127,9 @@
     "cGreen": "Повторить",
     "cOrange": "Нравится",
     "cRed": "Отменить",
+    "change_email": "Сменить email",
+    "change_email_error": "Произошла ошибка при попытке изменить email.",
+    "changed_email": "Email изменён успешно.",
     "change_password": "Сменить пароль",
     "change_password_error": "Произошла ошибка при попытке изменить пароль.",
     "changed_password": "Пароль изменён успешно.",
@@ -169,6 +172,7 @@
     "loop_video_silent_only": "Зацикливать только беззвучные видео (т.е. \"гифки\" с Mastodon)",
     "name": "Имя",
     "name_bio": "Имя и описание",
+    "new_email": "Новый email",
     "new_password": "Новый пароль",
     "notification_visibility": "Показывать уведомления",
     "notification_visibility_follows": "Подписки",