Task/improve language localization for de 20251229 (#6108)

* Update translations

* Update changelog

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Lifted the asset profile identifier editing restriction for `MANUAL` data sources in the asset profile details dialog of the admin control panel
+- Improved the language localization for German (`de`)
 - Upgraded `angular` from version `20.2.4` to `20.3.9`
 - Upgraded `ng-extract-i18n-merge` from `3.1.0` to `3.2.1`
 - Upgraded `Nx` from version `21.5.1` to `22.1.3`

apps/client/src/locales/messages.de.xlf

@@ -3475,7 +3475,7 @@
       </trans-unit>
       <trans-unit id="5499742151525073097" datatype="html">
         <source>Upgrade Plan</source>
-        <target state="translated">Abonnement abschliessen</target>
+        <target state="translated">Mitgliedschaft abschliessen</target>
         <context-group purpose="location">
           <context context-type="sourcefile">apps/client/src/app/components/header/header.component.html</context>
           <context context-type="linenumber">193</context>
@@ -3747,7 +3747,7 @@
       </trans-unit>
       <trans-unit id="2030314101752312029" datatype="html">
         <source>Renew Plan</source>
-        <target state="translated">Abonnement erneuern</target>
+        <target state="translated">Mitgliedschaft erneuern</target>
         <context-group purpose="location">
           <context context-type="sourcefile">apps/client/src/app/components/header/header.component.html</context>
           <context context-type="linenumber">191</context>
@@ -6934,7 +6934,7 @@
       </trans-unit>
       <trans-unit id="7522916136412124285" datatype="html">
         <source>to use our referral link and get a Ghostfolio Premium membership for one year</source>
-        <target state="translated">um unseren Empfehlungslink zu verwenden und ein Ghostfolio Premium-Abonnement für ein Jahr zu erhalten</target>
+        <target state="translated">um unseren Empfehlungslink zu verwenden und eine Ghostfolio Premium-Mitgliedschaft für ein Jahr zu erhalten</target>
         <context-group purpose="location">
           <context context-type="sourcefile">apps/client/src/app/pages/pricing/pricing-page.html</context>
           <context context-type="linenumber">343</context>