Feature/#548 new email editor page

[Sinharitik589]

Description

Provide feature of editing the email templates providing user to set subject as well as body for the template
Major changes/addition:-

• Seperate mongodb model for email as setting model usecase doesnt apply to it , it has additional field like subject and moreover we dont want to fetch email configurations along with all settings as it is an important aspect
• An additional key emailVariables assigned to the model , for the usecase when we need to place the variables for e.g. name as per user which can now be achieved as user will use the format {{variable}} for those cases.

Related Issues

#548

Screenshots (if applicable)

Checklist

• I have tested these changes
• I have updated the relevant documentation
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the codebase
• My changes generate no new warnings or errors
• The title of my pull request is clear and descriptive

[salahlalami]

@Sinharitik589 Cool , it's look good , i like your approach to create new Model for Email

[salahlalami]

what's reason to use this emailVariables ?

for custom email variable , we can use pattern {{client.name}} , then when we send email , we can replace those variable before sending mail

[Sinharitik589]

This is for two purpose , first is to let user know that these are the varables that you might use in that particular email and second is to parse only those variables when sending the mail

[salahlalami]

perfect

[salahlalami]

perfect

[salahlalami]

Thank you @Sinharitik589