refactor publisher and make Excel files consistent

MANIFEST.in

compendium_v2/background_task/__init__.py

compendium_v2/conversion/conversion.py

compendium_v2/db/auth_model.py

compendium_v2/db/presentation_models.py

compendium_v2/db/survey_models.py

compendium_v2/migrations/dump_survey_model.py

compendium_v2/publishers/excel_parser.py

compendium_v2/publishers/helpers.py

compendium_v2/publishers/survey_publisher.py

compendium_v2/publishers/survey_publisher_legacy_excel.py

compendium_v2/publishers/survey_publisher_old_db_2022.py

compendium_v2/resources/2021_Organisation_DataSeries.xlsx

compendium_v2/resources/2022_Connected_Users_DataSeries.xlsx

compendium_v2/resources/2022_Networks_DataSeries.xlsx

...m_v2/resources/NREN-Services-prefills_2023_Recovered.xlsx

compendium_v2/routes/budget.py

compendium_v2/routes/charging.py

compendium_v2/routes/common.py

compendium_v2/routes/ec_projects.py