Optimize Docker (#575)

* reduce docker dev size

* reduce docker prod size

* fix lint

* add gunicorn

* fix bandit reported issues

* add docs external link icon

* add env vars to docs

* add permission to docker

* merge to one backend Dockerfile

* fix codefactor issues

* add docs for puid/pgid

* add docker healthcheck

docs/docs/documentation/getting-started/introduction.md

@@ -2,7 +2,7 @@
 
 Mealie is a self hosted recipe manager and meal planner with a RestAPI backend and a reactive frontend application built in Vue for a pleasant user experience for the whole family. Easily add recipes into your database by providing the url and Mealie will automatically import the relevant data or add a family recipe with the UI editor. Mealie also provides an API for interactions from 3rd party applications. 
 
-[Remember to join the Discord](https://discord.gg/QuStdQGSGK){:target="_blank"}! 
+[Remember to join the Discord](https://discord.gg/QuStdQGSGK)! 
 
 !!! note
     In some of the demo gifs the styling may be different than the finale application. demos were done during development prior to finale styling.
@@ -26,7 +26,7 @@ Mealie is a self hosted recipe manager and meal planner with a RestAPI backend a
     - Flexible API
         - Custom key/value pairs for recipes
         - Webhook support
-        - Interactive API Documentation thanks to [FastAPI](https://fastapi.tiangolo.com/){:target="_blank"} and [Swagger](https://petstore.swagger.io/){:target="_blank"}
+        - Interactive API Documentation thanks to [FastAPI](https://fastapi.tiangolo.com/) and [Swagger](https://petstore.swagger.io/)
     - Raw JSON Recipe Editor
     - Migration from other platforms
         - Chowdown
@@ -36,7 +36,7 @@ Mealie is a self hosted recipe manager and meal planner with a RestAPI backend a
 ## FAQ
 
 ### Why An API?
-An API allows integration into applications like [Home Assistant](https://www.home-assistant.io/){:target="_blank"} that can act as notification engines to provide custom notifications based of Meal Plan data to remind you to defrost the chicken, marinade the steak, or start the CrockPot. Additionally, you can access nearly any backend service via the API giving you total control to extend the application. To explore the API spin up your server and navigate to http://yourserver.com/docs for interactive API documentation. 
+An API allows integration into applications like [Home Assistant](https://www.home-assistant.io/) that can act as notification engines to provide custom notifications based of Meal Plan data to remind you to defrost the chicken, marinade the steak, or start the CrockPot. Additionally, you can access nearly any backend service via the API giving you total control to extend the application. To explore the API spin up your server and navigate to http://yourserver.com/docs for interactive API documentation. 
 
 ### Why a Database?
 Some users of static-site generator applications like ChowDown have expressed concerns about their data being stuck in a database. Considering this is a new project it is a valid concern to be worried about your data. Mealie specifically addresses this concern by provided automatic daily backups that export your data in json, plain-text markdown files, and/or custom Jinja2 templates. **This puts you in controls of how your data is represented** when exported from Mealie, which means you can easily migrate to any other service provided Mealie doesn't work for you. 
@@ -48,10 +48,10 @@ As to why we need a database?
 
 ## Built With
 
-* [Vue.js](https://vuejs.org/){:target="_blank"}
-* [Vuetify](https://vuetifyjs.com/en/){:target="_blank"}
-* [FastAPI](https://fastapi.tiangolo.com/){:target="_blank"}
-* [Docker](https://www.docker.com/){:target="_blank"}
+* [Vue.js](https://vuejs.org/)
+* [Vuetify](https://vuetifyjs.com/en/)
+* [FastAPI](https://fastapi.tiangolo.com/)
+* [Docker](https://www.docker.com/)
 
 <!-- ROADMAP -->
 ## Road Map