Translation cleanup (#5370)

* use correct translation key
* de-duplicate translation

UPGRADING-3.md

@@ -0,0 +1,18 @@
+# Upgrading Kimai - Version 3.x
+
+_Make sure to create a backup before you start!_ 
+
+Read the [updates documentation](https://www.kimai.org/documentation/updates.html) to find out how you can upgrade your Kimai installation to the latest stable release.
+
+Check below if there are more version specific steps required, which need to be executed after the normal update process.
+Perform EACH version specific task between your version and the new one, otherwise you risk data inconsistency or a broken installation.
+
+## 3.0
+
+**!! This release requires minimum PHP version 8.4 !!**
+
+### Developer
+
+Removed translations:
+- `action.edit`: use `edit` instead
+- `my.profile`: use `user_profile` instead