feat!: branch renames nightly -> main

This is part of overhangio/tutor#1096

We are renaming the "nightly" branch to "main" across Tutor
repositories. As a consequence, we also rename the plugin index for the
nightly branch.

We are preserving the existing nightly indices thanks to symlinks.

contrib/nightly

@@ -0,0 +1 @@
+main/

main/nightly/plugins.yml → main/main/plugins.yml

@@ -3,15 +3,15 @@
 # It can be modified by opening a pull request on the following repository: https://github.com/overhangio/tpi/
 
 - name: android
-  src: -e git+https://github.com/overhangio/tutor-android.git@nightly#egg=tutor-android
+  src: -e git+https://github.com/overhangio/tutor-android.git@main#egg=tutor-android
   url: https://github.com/overhangio/tutor-android
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
   description: |
     Build an Android mobile application for your Open edX platform.
 
 - name: cairn
-  src: -e git+https://github.com/overhangio/tutor-cairn.git@nightly#egg=tutor-cairn
+  src: -e git+https://github.com/overhangio/tutor-cairn.git@main#egg=tutor-cairn
   url: https://github.com/overhangio/tutor-cairn
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
@@ -35,7 +35,7 @@
 
 
 - name: discovery
-  src: -e git+https://github.com/overhangio/tutor-discovery.git@nightly#egg=tutor-discovery
+  src: -e git+https://github.com/overhangio/tutor-discovery.git@main#egg=tutor-discovery
   url: https://github.com/overhangio/tutor-discovery
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
@@ -45,7 +45,7 @@
     (https://github.com/openedx/course-discovery) in your Open edX environment.
 
 - name: ecommerce
-  src: -e git+https://github.com/overhangio/tutor-ecommerce.git@nightly#egg=tutor-ecommerce
+  src: -e git+https://github.com/overhangio/tutor-ecommerce.git@main#egg=tutor-ecommerce
   url: https://github.com/overhangio/tutor-ecommerce
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
@@ -56,23 +56,23 @@
     plugin depends on the discovery and the MFE plugins, which must also be enabled.
 
 - name: forum
-  src: -e git+https://github.com/overhangio/tutor-forum.git@nightly#egg=tutor-forum
+  src: -e git+https://github.com/overhangio/tutor-forum.git@main#egg=tutor-forum
   url: https://github.com/overhangio/tutor-forum
   author: Edly <[email protected]>
   maintainer: Zaat.dev <[email protected]>
   description: |
     Add discussion forum to your Open edX platform.
 
 - name: indigo
-  src: -e git+https://github.com/overhangio/tutor-indigo.git@nightly#egg=tutor-indigo
+  src: -e git+https://github.com/overhangio/tutor-indigo.git@main#egg=tutor-indigo
   url: https://github.com/overhangio/tutor-indigo
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
   description: |
     A beautiful, blue theme for Open edX.
 
 - name: jupyter
-  src: -e git+https://github.com/overhangio/tutor-jupyter.git@nightly#egg=tutor-jupyter
+  src: -e git+https://github.com/overhangio/tutor-jupyter.git@main#egg=tutor-jupyter
   url: https://github.com/overhangio/tutor-jupyter
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
@@ -84,7 +84,7 @@
     in your courses.
 
 - name: mfe
-  src: -e git+https://github.com/overhangio/tutor-mfe.git@nightly#egg=tutor-mfe
+  src: -e git+https://github.com/overhangio/tutor-mfe.git@main#egg=tutor-mfe
   url: https://github.com/overhangio/tutor-mfe
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
@@ -93,7 +93,7 @@
     Microfrontends form the backbone of Open edX. Thus, this plugin is required by most Open edX installations.
 
 - name: minio
-  src: -e git+https://github.com/overhangio/tutor-minio.git@nightly#egg=tutor-minio
+  src: -e git+https://github.com/overhangio/tutor-minio.git@main#egg=tutor-minio
   url: https://github.com/overhangio/tutor-minio
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
@@ -102,23 +102,23 @@
     This plugins is pretty much a requirement to run Open edX on Kubernetes.
 
 - name: notes
-  src: -e git+https://github.com/overhangio/tutor-notes.git@nightly#egg=tutor-notes
+  src: -e git+https://github.com/overhangio/tutor-notes.git@main#egg=tutor-notes
   url: https://github.com/overhangio/tutor-notes
   author: Edly <[email protected]>
   maintainer: eduNEXT
   description: |
     Add student notes to the Open edX courseware.
 
 - name: webui
-  src: -e git+https://github.com/overhangio/tutor-webui.git@nightly#egg=tutor-webui
+  src: -e git+https://github.com/overhangio/tutor-webui.git@main#egg=tutor-webui
   url: https://github.com/overhangio/tutor-webui
   author: Edly <[email protected]>
   maintainer: Edly <[email protected]>
   description: |
     Manage your Tutor-powered Open edX installation from the browser.
 
 - name: xqueue
-  src: -e git+https://github.com/overhangio/tutor-xqueue.git@nightly#egg=tutor-xqueue
+  src: -e git+https://github.com/overhangio/tutor-xqueue.git@main#egg=tutor-xqueue
   url: https://github.com/overhangio/tutor-xqueue
   author: Edly <[email protected]>
   maintainer: eduNEXT

main/nightly

@@ -0,0 +1 @@
+main/

main/olive/plugins.yml

@@ -1,5 +1,5 @@
 # This is the index for all Tutor plugins that are officially maintained by Edly.
-# It is available at the following location: https://overhang.io/tutor/main/nightly/plugins.yml
+# It is available at the following location: https://overhang.io/tutor/main/olive/plugins.yml
 # It can be modified by opening a pull request on the following repository: https://github.com/overhangio/tpi/
 
 - name: android