docs: fix invalid links and redirection

website/astro.config.mjs

@@ -45,5 +45,8 @@ export default defineConfig({
   redirects: {
     "/docs": "/docs/get-started/introduction",
     "/docs/get-started": "/docs/get-started/introduction",
+    "/docs/developing-plugins": "/docs/developing-plugins/introduction",
+    "/docs/plugin-apis": "/docs/plugin-apis/webview",
+    "/docs/reference": "/docs/reference/models",
   },
 });

website/src/content/docs/developing-plugins/implementing-endpoints.mdx

@@ -479,10 +479,10 @@ class CorePlugin {
 [scrobbling_wiki]: https://en.wikipedia.org/wiki/Last.fm
 [hetu_script_import_export_docs]: https://hetu-script.github.io/docs/en-US/grammar/import/
 [hetu_spotube_plugin]: https://github.com/KRTirtho/hetu_spotube_plugin
-[spotube_plugin_api]: /
 [hetu_std]: https://github.com/hetu-community/hetu_std
 [dart_stream_controller]: https://api.flutter.dev/flutter/dart-async/StreamController-class.html
 [hetu_struct_into_map]: https://hetu-script.github.io/docs/en-US/api_reference/hetu/#struct
+[spotube_plugin_api]: /docs/plugin-apis
 [SpotubeUserObject]: /docs/reference/models#user
 [SpotubePaginationResponseObject]: /docs/reference/models#pagination-response
 [SpotubeFullAlbumObject]: /docs/reference/models#spotubefullalbumobject

website/src/content/docs/get-started/installing-plugins.mdx

@@ -12,7 +12,7 @@ Let's first learn how to install plugins in Spotube. It's pretty simple.
 1. Then go to the top option, "Metadata provider plugins"
 1. You can see a list of all the plugins that are available to install
 
-![Lmafo](/docs/getting-started/installing-plugins/navigate.webp)
+![Navigate to plugins page](/docs/getting-started/installing-plugins/navigate.webp)
 
 ## More ways to install new plugins
 
@@ -25,4 +25,6 @@ Try to use the `Official` tagged plugins all the time if you don't want to deal
 - **Upload plugin from local file**: You can also install plugins from local file (plugin.smplug) using the _Orange Upload button_ on the top right beside the text field.
 - **Install plugin from URL**: If you have a direct link to a plugin file, you can just paste the URL in the text field and use the gray download button beside it
 
-> If you're a developer, you can create your own plugins and share them with the community. Check out the [Plugin Development Guide](/docs/developing-plugins) for more information.
+> If you're a developer, you can create your own plugins and share them with the community. Check out the [Plugin Development Guide][developing_plugins] for more information.
+
+[developing_plugins]: /docs/developing-plugins/introduction

website/src/content/docs/reference/libraries.mdx

@@ -2,7 +2,7 @@
 layout: "layouts/DocLayout.astro"
 title: Libraries
 description: List of libraries for Spotube Plugins.
-order: 0
+order: 1
 ---
 
 - [`hetu_std`][hetu_std] (built-in) - A standard library for hetu_script that provides standard set of functions and utilities.