phsl / new-api

- Added a new endpoint to batch set tags for multiple channels, allowing users to update tags efficiently.
- Introduced a new `BatchSetChannelTag` function in the controller to handle incoming requests and validate parameters.
- Updated the `BatchSetChannelTag` method in the model to manage database transactions and ensure data integrity during tag updates.
- Enhanced the ChannelsTable component in the frontend to support batch tag setting, including UI elements for user interaction.
- Updated localization files to include new translation keys related to batch operations and tag settings.