🪪mkdocs: social cards (#1428)

* mkdocs plugins: add plugin for social cards and plugin that allow to exclude a folder

* docs: fix hyperlinks

* mkdocs: social cards (descriptions) for 'contributions' and 'deployment' guides

* mkdocs: social cards (descriptions) for all 'index.md'

* mkdocs: social cards (descriptions) for 'features' and 'plugins'

* mkdocs: social cards (descriptions) for 'general_info'

* mkdocs: social cards (descriptions) for 'configuration'

* mkdocs: social cards (descriptions) for 'installation'

* mkdocs: minor fixes

* update librechat.svg

* update how_to_contribute.md

add reference to the official GitHub documentation

docs/general_info/breaking_changes.md

@@ -1,5 +1,6 @@
 ---
 title: ⚠️ Breaking Changes
+description: This doc lists the breaking changes that affect the functionality and compatibility of LibreChat. You should read this doc before updating to a new version of LibreChat, and follow the instructions to resolve any issues.
 weight: -10
 ---
 # ⚠️ Breaking Changes

docs/general_info/index.md

@@ -1,5 +1,6 @@
 ---
 title: General Information
+description: 📜 This section contains information about LibreChat, such as its history, purpose, and values. You will also find the details of the tech stack, the code of conduct, and the breaking changes that affect the project.
 weight: 4
 ---
 

docs/general_info/multilingual_information.md

@@ -1,5 +1,6 @@
 ---
 title: 🌍 Multilingual Information
+description: To set up the project, please follow the instructions in the documentation. The documentation is in English only, so you may need to use a translation tool or an AI assistant (e.g. ChatGPT) if you have difficulty understanding it.
 weight: -9
 ---
 # Multilingual Information

docs/general_info/project_origin.md

@@ -1,5 +1,6 @@
 ---
 title: 🧭 Origin
+description: How it all started...
 weight: -8
 ---
 # Origin

docs/general_info/tech_stack.md

@@ -1,5 +1,6 @@
 ---
 title: 🧑‍💻 Tech Stack
+description: This doc describes the technologies and frameworks that LibreChat uses.
 weight: -8
 ---
 # Tech Stack