improve kimai v1 importer

[kevinpapst]

Description

improve kimai v1 importer: do not break for projects without customer

Fixes #1539

Types of changes

• 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 change)

Checklist

• I verified that my code applies to the guidelines (composer kimai:code-check)
• I updated the documentation (see here)
• I agree that this code is used in Kimai and will be published under the MIT license

[codecov]

Codecov Report

Merging #1543 into master will not change coverage by %.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1543   +/-   ##
=========================================
  Coverage     92.61%   92.61%           
  Complexity     4359     4359           
=========================================
  Files           422      422           
  Lines         13523    13523           
=========================================
  Hits          12524    12524           
  Misses          999      999           

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. If you use Kimai on a daily basis, please consider donating to support further development of Kimai.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. If you use Kimai on a daily basis, please consider donating to support further development of Kimai.