Fix logging integration docs

[dingsdax]

• https://docs.sentry.io/platforms/python/integrations/logging/

• https://docs.sentry.io/platforms/python/integrations/loguru/

  Change the ordering so Structured Logging is mentioned first and more prominent. "Logging via breadcrumbs" should be mentioned later in the content and as not preferred way even as it may be default.

  add a banner adjusted for Python like the one in JS: https://docs.sentry.io/platforms/javascript/guides/node/configuration/integrations/console/ CTA-ing customers to enable logs

[linear]

PY-1969