2.5.0/release

projects-export-import

codex/update-pluginpythonpathvalidator-availability-check

add-config-app-for-plugin-model

codex/find-if-external-plugins-can-customize-error-messages

codex/add-new-plugin-field-to-optionset-model

codex/review-comments-from-@jochenklar-for-code-suggestions

project-refactor-home+templates

codex/implement-plugin-type-normalization-suggestions