Update training site URLs to Catalog MFE routes

Author: sarina

source/developers/quickstarts/first_openedx_pr.rst

@@ -393,9 +393,9 @@ section of the documentation for links to some places where you could get help.
 
    :ref:`Open edX Developer's Guide` (Reference)
 
-   `Intro to the Open edX Project & Contributing <https://training.openedx.io/courses/course-v1:OpenedX+OEX101+2023/about>`_ (Training Course)
+   `Intro to the Open edX Project & Contributing <https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX101+2023/about>`_ (Training Course)
 
-   `Open edX Developer Onboarding <https://training.openedx.io/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_ (Training Course)
+   `Open edX Developer Onboarding <https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_ (Training Course)
 
 **Maintenance Chart**
 

source/developers/quickstarts/so_you_want_to_contribute.rst

@@ -256,9 +256,9 @@ could benefit from, please post on the `Open edX forums`_.
 
    :ref:`Open edX Developer's Guide` (Reference)
 
-   `Intro to the Open edX Project & Contributing <https://training.openedx.io/courses/course-v1:OpenedX+OEX101+2023/about>`_ (Training Course)
+   `Intro to the Open edX Project & Contributing <https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX101+2023/about>`_ (Training Course)
 
-   `Open edX Developer Onboarding <https://training.openedx.io/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_ (Training Course)
+   `Open edX Developer Onboarding <https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_ (Training Course)
 
 
 .. include:: /links.txt

source/developers/references/developer_guide/index.rst

@@ -17,9 +17,9 @@ its follow-up, :ref:`qs Dev Contributing`.
 
 Also useful is the `Intro to the Open edX Project & Contributing onboarding
 course
-<https://training.openedx.io/courses/course-v1:OpenedX+OEX101+2023/about>`_ as
+<https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX101+2023/about>`_ as
 well as the `Open edX Developer's Onboarding course
-<https://training.openedx.io/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_.
+<https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_.
 
 .. toctree::
    :maxdepth: 2

source/developers/references/developer_guide/process/index.rst

@@ -12,9 +12,9 @@ its follow-up, :ref:`qs Dev Contributing`.
 
 Also useful is the `Intro to the Open edX Project & Contributing onboarding
 course
-<https://training.openedx.io/courses/course-v1:OpenedX+OEX101+2023/about>`_ as
+<https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX101+2023/about>`_ as
 well as the `Open edX Developer's Onboarding course
-<https://training.openedx.io/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_.
+<https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+OEX-Dev101+2024/about>`_.
 
 .. toctree::
     :maxdepth: 2

source/educators/how-tos/advanced_features/lti_determine_content_address.rst

@@ -43,7 +43,7 @@ To find the course ID for your course, follow these steps.
 
 For example, you open the "Open edX Demo Course" course to the **Course**
 page for the course. The URL for the **Course** page is
-``https://training.openedx.io/courses/course-v1:OpenedX+DemoX+Demo_Course/about``. From
+``https://apps.training.openedx.io/catalog/courses/course-v1:OpenedX+DemoX+Demo_Course/about``. From
 the URL, you determine that the course ID is ``course-v1:OpenedX+DemoX+Demo_Course``.
 
 The same course ID applies to every item of content in the course.