Remove DevPortal materials from docs (#86)

* Remove DevPortal materials from docs

* Bump Docusaurus to 2.4.0

* Fix lock-file

* Add redirects to DevPortal ecosystem

* Add redirects for oracles

* Remove Black IDE, redirect contract verification page

* Bring back the page titles for search to work

Author: Karkunow

docs/interact/README.md renamed to docs/bridge/README.md

@@ -2,7 +2,7 @@
 sidebar_position: 1
 ---
 
-# Overview
+# Intro
 
 For bridging the origin chain of the token matters. It is not possible to mint a token on Aurora and move it to Ethereum.
 

docs/faq.md

@@ -74,8 +74,8 @@ Yes! Since confirmation of transfer can take a while, you’ll be able to initia
 
 ## I have a few more questions. Where can I get help?
 
-For support and help with any questions, don't hesitate to reach out on Telegram channels: [official channel], [support channel], [development channel].
+For support and help with any questions, don't hesitate to reach out on Telegram channels: [official channel], [support in Discord], [development channel].
 
 [official channel]:    https://t.me/auroraisnear
-[support channel]:     https://t.me/auroraisnearsupport
+[support in Discord]:  https://discord.aurora.dev/
 [development channel]: https://t.me/auroraisneardev

docs/integrate/_category_.json

@@ -0,0 +1,12 @@
+---
+title: Covalent
+sidebar_position: 1
+---
+
+## Page moved to the DevPortal - Redirecting..
+
+import Redirect from '@site/src/components/Redirect';
+
+<Redirect url="https://dev.aurora.dev/ecosystem/covalent" />
+
+