feat: support account registration

src/main/resources/i18n/messages.properties

@@ -115,6 +115,8 @@ termora.settings.plugin.manage-plugin-repository=Manage Plugin Repository...
 termora.settings.plugin.install-from-disk-warning=<b>{0}</b> plugin will have access to all your data. Are you sure you want to install it?
 
 termora.settings.account=Account
+termora.settings.account.register=Register
+termora.settings.account.not-support-register=This server does not support account registration
 termora.settings.account.login=Log in
 termora.settings.account.server=Server
 termora.settings.account.locally=locally

src/main/resources/i18n/messages_zh_CN.properties

@@ -123,6 +123,8 @@ termora.settings.plugin.install-from-disk-warning=<b>{0}</b> 插件可以访问
 
 termora.settings.account=账号
 termora.settings.account.login=登录
+termora.settings.account.register=注册
+termora.settings.account.not-support-register=该服务器不支持注册账号
 termora.settings.account.server=服务器
 termora.settings.account.locally=本地的
 termora.settings.account.lifetime=长期

src/main/resources/i18n/messages_zh_TW.properties

@@ -134,6 +134,8 @@ termora.settings.plugin.install-from-disk-warning=<b>{0}</b> 插件可以存取
 
 termora.settings.account=帳號
 termora.settings.account.login=登入
+termora.settings.account.register=註冊
+termora.settings.account.not-support-register=此伺服器不支援註冊帳號
 termora.settings.account.server=伺服器
 termora.settings.account.locally=本地的
 termora.settings.account.lifetime=長期