docs: update structure and create links between pages (#1611)

* docs: rework files structure

* rewrite documentation entrypoint

* update category files and use yml

* add manuals entry page

* update admin-manual titles and page order

* create releases sections

* move ssl configuration to reverse proxy

* docs: update website vars and links

* update release note codeblock syntax key

* resurect troubleshooting guide

* Update freeipa custom auth documentation

* add notice about the state of the documentation

* update the backup documentation

* tmp: allow to deploy the website for preview

* Don't use require.resolve for plugins

* Update the main page link dest

* update development environment title

* rewrite the install/upgrade/migrate as guides

* update website docs sections links

* Fix urls

* move release note to documentation

* move home links to vars files

* tmp: update deploy url

* add react to tsconfig to handle jsx linting

* fix: replace absolute url to relative path to files

* tmp: allow CI Website dpeloy on working branch

* Update release note title

* use default syntax highlighting theme

* update the troubleshooting guide

* Wording

* use CodeBlock components

* Better prose

* remove api_client config section

* fix prose errors

* update import prefix for vars file

* reroder docs manuals links

* use sentence capitalization for page titles

* Wording

* missing word

* Update note about syslog log file

* wording

website/vars.js

@@ -0,0 +1,36 @@
+module.exports = {
+  title: "LibreTime",
+  description: "Radio Broadcast & Automation Platform",
+  version: "3.0.0-alpha.10",
+  website: "https://jooola.github.io",
+
+  repository: {
+    href: "https://github.com/libretime/libretime",
+    label: "Github",
+  },
+
+  forum: {
+    href: "https://discourse.libretime.org",
+    label: "Discourse",
+  },
+
+  channel: {
+    href: "https://chat.libretime.org",
+    label: "Mattermost",
+  },
+
+  home: {
+    links: [
+      { label: "Get started 🚀", to: "/docs/admin-manual" },
+      { label: "Release note", to: "/docs/releases/3.0.0-alpha.10" },
+    ],
+  },
+
+  doc: {
+    sections: [
+      { label: "Admin manual", to: "/docs/admin-manual" },
+      { label: "User manual", to: "/docs/user-manual" },
+      { label: "Developer manual", to: "/docs/developer-manual" },
+    ],
+  },
+};