✨(project) Django boilerplate

This commit introduces a boilerplate inspired by https://github.com/numerique-gouv/impress.
The code has been cleaned to remove unnecessary Impress logic and dependencies.

Changes made:
- Removed Minio, WebRTC, and create bucket from the stack.
- Removed the Next.js frontend (it will be replaced by Vite).
- Cleaned up impress-specific backend logics.

The whole stack remains functional:
- All tests pass.
- Linter checks pass.
- Agent Connexion sources are already set-up.

Why clear out the code?

To adhere to the KISS principle, we aim to maintain a minimalist codebase. Cloning Impress
allowed us to quickly inherit its code quality tools and deployment configurations for staging,
pre-production, and production environments.

What’s broken?
- The tsclient is not functional anymore.
- Some make commands need to be fixed.
- Helm sources are outdated.
- Naming across the project sources are inconsistent (impress, visio, etc.)
- CI is not configured properly.

This list might be incomplete. Let's grind it.

crowdin/config.yml

@@ -0,0 +1,29 @@
+#
+# Your crowdin's credentials
+#
+api_token_env: CROWDIN_API_TOKEN
+project_id_env: CROWDIN_PROJECT_ID
+base_path_env: CROWDIN_BASE_PATH
+
+#
+# Choose file structure in crowdin
+# e.g. true or false
+#
+preserve_hierarchy: true
+
+#
+# Files configuration
+#
+files: [
+ {
+  source : "/backend/locale/django.pot",
+  dest: "/backend-impress.pot",
+  translation : "/backend/locale/%locale_with_underscore%/LC_MESSAGES/django.po"
+ },
+  {
+    source: "/frontend/packages/i18n/locales/impress/translations-crowdin.json",
+    dest: "/frontend-impress.json",
+    translation: "/frontend/packages/i18n/locales/impress/%two_letters_code%/translations.json",
+    skip_untranslated_strings: true,
+  },
+]