Description

Currently, when inserting form result tokens into the message field of the "Send form results" action, only the values are included. This makes it difficult to understand the context of each value in the resulting email. This update modifies the token insertion to include both the field label and value, improving clarity for email recipients.

Use story

As a Mautic user
I want field labels to be included when I insert tokens into the message of the "Send form results" action
So that the form values in the resulting email are clear and meaningful

Before	After

Changes,

• Remove unused template: _form_submitaction_sendemail_widget.html.twig
  The template located at app/bundles/FormBundle/Resources/views/FormTheme/SubmitAction/_form_submitaction_sendemail_widget.html.twig is no longer used and can be safely removed. Cleaning up dead code to reduce maintenance overhead.
• Updated JavaScript code and templates to reflect the new approach for inserting form tokens.

📋 Steps to test this PR:

1. Open this PR on Gitpod or pull down for testing locally (see docs on testing PRs here)
2. Create a form:
   • Go to the Forms section.
   • Add fields like First Name and Email.
3. Add a form action:
   • Go to the Actions tab.
   • Add the "Send form results" action.
4. Verify initial token behavior:
   • Scroll to the Message field in the form action.
   • Click tokens like First Name or Email.
   • Confirm they are added in the format:
     <label>: {formfield=field_alias}
     For example:
     First Name: {formfield=first_name}
5. Test adding a new field dynamically:
   • Add a new field to the form, e.g., Last Name.
   • Reopen the "Send form results" action.
6. Verify updated token insertion:
   • Scroll to the "Click to insert field" section.
   • Click on "Last Name".
   • Confirm the following is inserted at the cursor or end of the message field:
     <strong>Last Name</strong>: {formfield=last_name}