Add notification_templates.sms_templates.apply config.

[RushanNanayakkara]

Proposed changes in this pull request

This PR adds a config to control whether to apply sms templates or not. This config is only introduced as a fall back option disable the fix being introduced for the main issue attacked.
This will be removed once the fix is confirmed.

Related Issue

• SMS Templates not being applied to SMS notifications product-is#21620

Related PRs

• Fix sms templates not being applied wso2-extensions/identity-local-auth-smsotp#25
• Fix default SMS template inconsistent placeholder wso2-extensions/identity-event-handler-notification#273

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/11675564591

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 40.73%. Comparing base (f57b194) to head (4fe08b7).
Report is 26 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6104      +/-   ##
============================================
+ Coverage     40.72%   40.73%   +0.01%     
+ Complexity    14453    14445       -8     
============================================
  Files          1763     1763              
  Lines        117615   117615              
  Branches      19084    19084              
============================================
+ Hits          47896    47912      +16     
+ Misses        62434    62418      -16     
  Partials       7285     7285              

Flag	Coverage Δ
unit	24.99% <ø> (+0.01%)	⬆️

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[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/11675564591
Status: success

[jenkins-is-staging]

Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/11675564591