minor and major reworks: rename swb to SRU, add a test for pdf parsing

major: rework mail to send mail as plaintext instead of html, preventing the bleed-in of html text

src/ui/dialogs/__init__.py

@@ -12,20 +12,21 @@ __all__ = [
     "ElsaAddEntry",
     "ApparatExtendDialog",
     "DocumentPrintDialog",
+    "NewEditionDialog",
     "Settings",
 ]
+from .about import About
+from .app_ext import ApparatExtendDialog
 from .bookdata import BookDataUI
+from .docuprint import DocumentPrintDialog
+from .elsa_add_entry import ElsaAddEntry
+from .elsa_gen_confirm import ElsaGenConfirm
 from .login import LoginDialog
 from .mail import Mail_Dialog
 from .mailTemplate import MailTemplateDialog
 from .medienadder import MedienAdder
+from .newEdition import NewEditionDialog
 from .parsed_titles import ParsedTitles
 from .popup_confirm import ConfirmDialog as popus_confirm
 from .reminder import ReminderDialog
-from .about import About
-from .elsa_gen_confirm import ElsaGenConfirm
-from .elsa_add_entry import ElsaAddEntry
-from .app_ext import ApparatExtendDialog
-from .docuprint import DocumentPrintDialog
-
 from .settings import Settings