refactor: replace mkdocs with zensical (#2667)

* move docs to zensical

* fix requirements

* fixes

* remove manual font loading

does not work properly with mike

* switch back to pymdownx.blocks.admonition

* revert back

* remove css

* add note about privacy plugin

* pr review findings

.vscode/settings.json

@@ -26,5 +26,8 @@
   "i18n-ally.sortKeys": false,
   "i18n-ally.keepFulfilled": false,
   "i18n-ally.keystyle": "nested",
-  "editor.gotoLocation.multipleDefinitions": "goto"
+  "editor.gotoLocation.multipleDefinitions": "goto",
+  "[toml]": {
+    "editor.defaultFormatter": "tamasfe.even-better-toml"
+  }
 }