Update customer language on login

[alessandroaussems]

1. Why is this change necessary?

Fixes: https://issues.shopware.com/issues/NEXT-22927

2. What does this change do, exactly?

Update languageId from customer to the active language from the shop on login

3. Describe each step to reproduce the issue or behaviour.

See: https://issues.shopware.com/issues/NEXT-22927

4. Please link to the relevant issues (if any).

https://issues.shopware.com/issues/NEXT-22927

5. Checklist

• I have written tests and verified that they fail without my change
• I have created a changelog file with all necessary information about my changes
• I have written or adjusted the documentation according to my changes
• This change has comments for package types, values, functions, and non-obvious lines of code
• I have read the contribution requirements and fulfil them.

[codecov]

Codecov Report

Merging #2664 (9d696fd) into trunk (07310a7) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##            trunk    #2664      +/-   ##
==========================================
+ Coverage   64.65%   64.67%   +0.01%     
==========================================
  Files        3599     3599              
  Lines       80273    80284      +11     
==========================================
+ Hits        51899    51920      +21     
+ Misses      28374    28364      -10     

Impacted Files	Coverage Δ
...Core/Checkout/Customer/SalesChannel/LoginRoute.php	89.06% <100.00%> (+0.17%)	⬆️
...Framework/Rule/Container/MatchAllLineItemsRule.php	70.96% <0.00%> (-3.23%)	⬇️
.../Api/ApiDefinition/Generator/OpenApi3Generator.php	61.90% <0.00%> (-1.91%)	⬇️
...c/Core/Content/Sitemap/Service/SitemapExporter.php	92.06% <0.00%> (-1.59%)	⬇️
...ent/MailTemplate/Subscriber/MailSendSubscriber.php	78.86% <0.00%> (-0.82%)	⬇️
src/Core/Installer/Installer.php	100.00% <0.00%> (ø)
...tionLayer/CheapestPrice/CheapestPriceContainer.php	89.24% <0.00%> (+0.74%)	⬆️
...Flow/Dispatching/Action/GenerateDocumentAction.php	80.00% <0.00%> (+1.25%)	⬆️
...ataAbstractionLayer/DefinitionInstanceRegistry.php	91.37% <0.00%> (+1.72%)	⬆️
...Core/Checkout/Cart/Delivery/DeliveryCalculator.php	96.15% <0.00%> (+1.92%)	⬆️
... and 3 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[keulinho]

Thanks for your contribution! 🎉 💙

Can you add a testcase for your fix?

[shopwareBot]

Hello,

thank you for creating this pull request.
I have opened an issue on our Issue Tracker for you. See the issue link: https://issues.shopware.com/issues/NEXT-22959

Please use this issue to track the state of your pull request.

[NiklasLimberg]

Thanks for your contribution 🎉