✨ Add support for docs translations (#1168)

* 🌐 Refactor file structure to support internationalization

* ✅ Update tests changed after i18n

* 🔀 Merge Typer style from master

* 🔧 Update MkConfig with Typer-styles

* 🎨 Format mkdocs.yml with cannonical form

* 🎨 Format mkdocs.yml

* 🔧 Update MkDocs config

* ➕ Add docs translation scripts dependencies

* ✨ Add Typer scripts to handle translations

* ✨ Add missing translation snippet to include

* ✨ Update contributing docs, add docs for translations

* 🙈 Add docs_build to gitignore

* 🔧 Update scripts with new locations and docs scripts

* 👷 Update docs deploy action with translations

* 📝 Add note about languages not supported in the theme

* ✨ Add first translation, for Spanish

docs_src/extending_openapi/tutorial002.py

@@ -0,0 +1,41 @@
+from fastapi import FastAPI
+from fastapi.openapi.docs import (
+    get_redoc_html,
+    get_swagger_ui_html,
+    get_swagger_ui_oauth2_redirect_html,
+)
+from fastapi.staticfiles import StaticFiles
+
+app = FastAPI(docs_url=None, redoc_url=None)
+
+app.mount("/static", StaticFiles(directory="static"), name="static")
+
+
+@app.get("/docs", include_in_schema=False)
+async def custom_swagger_ui_html():
+    return get_swagger_ui_html(
+        openapi_url=app.openapi_url,
+        title=app.title + " - Swagger UI",
+        oauth2_redirect_url=app.swagger_ui_oauth2_redirect_url,
+        swagger_js_url="/static/swagger-ui-bundle.js",
+        swagger_css_url="/static/swagger-ui.css",
+    )
+
+
+@app.get(app.swagger_ui_oauth2_redirect_url, include_in_schema=False)
+async def swagger_ui_redirect():
+    return get_swagger_ui_oauth2_redirect_html()
+
+
+@app.get("/redoc", include_in_schema=False)
+async def redoc_html():
+    return get_redoc_html(
+        openapi_url=app.openapi_url,
+        title=app.title + " - ReDoc",
+        redoc_js_url="/static/redoc.standalone.js",
+    )
+
+
+@app.get("/users/{username}")
+async def read_user(username: str):
+    return {"message": f"Hello {username}"}