Add configuration option for email sender address apart from SMTP username

[lingrottin]

What type of PR is this?

/kind bug
/kind api-change

What this PR does / why we need it:

As described in #5350, when using Amazon SES, for example, as email provider, SMTP username for authentication may not exactly match sender email address. When this happens, websites using Halo will not be able to send emails due to invalid addresses that Halo put in SMTP requests. This PR adds a configuration field for those who got a non-email-address username to specify one separately.

Which issue(s) this PR fixes:

Fixes #5350

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Yes

邮件通知配置添加发送邮件地址配置选项。

[CLAassistant]

All committers have signed the CLA.

[sonarcloud]

Quality Gate passed

Issues
0 New issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[JohnNiang]

/ping @guqing

Please help us review the PR.

[guqing]

Hi @lingrottin, Thanks for your contribution, please fix the code style by Code Style and unit test cases first

[lingrottin]

Hi, sorry for the late reply due to schooling issues. I have fixed the format issues and checked them with checkstyle. Additional unit tests is not required as this PR only modifies the inside of class EmailNotifier which has but a notify method exported and being referenced. Existing DefaultNotificationSenderTest case would include the test of this.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 56.54%. Comparing base (5fdf6c0) to head (c12bb2a).
Report is 76 commits behind head on main.

Files	Patch %	Lines
.../java/run/halo/app/notification/EmailNotifier.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5351      +/-   ##
============================================
- Coverage     56.91%   56.54%   -0.38%     
+ Complexity     3319     3313       -6     
============================================
  Files           587      592       +5     
  Lines         18968    19204     +236     
  Branches       1401     1355      -46     
============================================
+ Hits          10795    10858      +63     
- Misses         7594     7784     +190     
+ Partials        579      562      -17     

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[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[ruibaby]

/lgtm

Thanks for your first contribution！

ping @halo-dev/sig-halo

[JohnNiang]

/lgtm

Thank you for first contribution!

[ruibaby]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JohnNiang, ruibaby

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