[Components] sinch_messagemedia

# sinch_messagemedia
## URLs
- https://messagemedia.github.io/documentation/#section/Introduction
## Webhook Sources
### new-inbound-message-instant
#### Description
Emit new event when a new inbound message is received. Configure filters for specific phone numbers or message content if needed.
### new-message-status-update-instant
#### Description
Emit new event when the status of a sent message changes (e.g., delivered, failed). Configure filters for specific message statuses.
### new-opt-out-instant
#### Description
Emit new event when a recipient opts out of receiving messages. Useful for compliance and managing contact lists.
## Actions
### send-sms
#### Description
Send an SMS message to a specified phone number. Requires recipient phone number and message content.
### send-mms
#### Description
Send an MMS message with media attachments to a specified phone number. Requires recipient phone number, message content, and media URL.
### lookup-phone
#### Description
Retrieve information about a phone number, including carrier and validity. Requires phone number input.