improv: Set script templates via conveniet table and map

...ckcreator-api/src/main/i18n/Translations_en_GB.properties

.../kotlin/de/griefed/serverpackcreator/api/ApiProperties.kt

...fed/serverpackcreator/api/serverpack/ServerPackHandler.kt

serverpackcreator-api/src/main/resources/CHANGELOG.md

...de/griefed/serverpackcreator/api/ServerPackHandlerTest.kt

...rverpackcreator/app/gui/window/settings/GlobalSettings.kt

...tor/app/gui/window/settings/components/ScriptTemplates.kt

...griefed/serverpackcreator/app/updater/MigrationManager.kt

serverpackcreator-help/Writerside/topics/CHANGELOG.md