feat: add support to embedded whatsapp coexistence method (#12108)

This update adds support to the coexistence method to Embedded Whatsapp,
allowing users to add their existing whatsapp business number in order
to use it in both places(chatwoot and whatsapp business) at the same
time.

This update require some changes in the permissions for the Meta App, as
described in the Meta Oficial Docs, I'll leave this listed below:

- **history** — describes past messages the business customer has
sent/received
- **smb_app_state_sync** — describes the business customer's current and
new contacts
- **smb_message_echoes** — describes any new messages the business
customer sends with the WhatsApp Business app after having been
onboarded

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Sojan Jose <sojan@pepalo.com>
Co-authored-by: Tanmay Deep Sharma <32020192+tds-1@users.noreply.github.com>

config/installation_config.yml

@@ -10,7 +10,8 @@
 # locked: if you don't specify locked attribute in yaml, the default value will be true,
 #         which means the particular config will be locked and won't be available in `super_admin/installation_configs`
 # premium: These values get overwritten unless the user is on a premium plan
-# type: The type of the config. Default is text,  boolean is also supported
+# type: The type of the config. Default is text, select and boolean are also supported
+# options: For select types, its required to have options for the select in the following pattern: "option_value":"Human readable option"
 
 # ------- Branding Related Config ------- #
 - name: INSTALLATION_NAME