Update PR template for preview, notion card and comment unnecessary text

[rohitjoshixyz]

Pull Request Template

Description

Update the PR template to include preview, section to add notion card and comment unnecessary text
Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to
  not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Checklist:

• I have manually tested all workflows
• I have performed a self-review of my own code
• I have added automated tests for my code

[github-actions]

Current Code Coverage Percent of this PR:

71.96 %

Files having coverage below 100%

Impacted Files	Coverage
/app/helpers/application_helper.rb	89.47 %
/app/helpers/team_helper.rb	85.71 %
/app/controllers/concerns/error_handler.rb	73.53 %
/app/controllers/projects_controller.rb	42.86 %
/app/controllers/time_tracking_controller.rb	36.36 %
/app/controllers/concerns/timesheet.rb	37.5 %
/app/controllers/root_controller.rb	42.86 %
/app/controllers/workspaces_controller.rb	77.78 %
/app/controllers/clients_controller.rb	94.44 %
/app/models/timesheet_entry.rb	88.89 %
/app/models/project.rb	90.91 %
/app/policies/client_policy.rb	75.0 %
/app/controllers/companies/purge_logo_controller.rb	50.0 %
/app/controllers/users/passwords_controller.rb	41.67 %
/app/controllers/users/omniauth_callbacks_controller.rb	25.0 %
/app/controllers/users/sessions_controller.rb	25.0 %
/app/controllers/users/registrations_controller.rb	42.11 %
/app/controllers/users/invitations_controller.rb	64.29 %
/app/controllers/internal_api/v1/timesheet_entry_controller.rb	35.71 %
/app/controllers/internal_api/v1/workspaces_controller.rb	85.71 %
/app/controllers/internal_api/v1/clients_controller.rb	66.67 %
/lib/authentication/google.rb	0.0 %