Split IDE instructions into several pages, improve writing style

This removes the link to the KDevelop setup video tutorial as it's
now outdated.

IDE screenshots were also optimized losslessly using
`oxipng -o6 --strip --zopfli`.

See #3485.

development/cpp/configuring_an_ide/visual_studio_code.rst

@@ -0,0 +1,49 @@
+.. _doc_configuring_an_ide_vscode:
+
+Visual Studio Code
+==================
+
+Visual Studio Code is a free cross-platform IDE (not to be confused with
+:ref:`doc_configuring_an_ide_vs`). You can get it
+`from Microsoft <https://code.visualstudio.com/>`__.
+
+
+- Make sure the C/C++ extension is installed. You can find instructions in
+  the `documentation <https://code.visualstudio.com/docs/languages/cpp>`_.
+- Open the cloned Godot folder in Visual Studio Code with
+  **File > Open Folder...**.
+
+In order to build the project, you need two configuration files:
+``launch.json`` and ``tasks.json``. To create them:
+
+- Open the **Debug** view by pressing :kbd:`Ctrl + Shift + D` and select the
+  cogwheel with an orange dot:
+
+.. image:: img/vscode_1_create_launch.json.png
+
+- Select **C++ (GDB/LLDB)** (it might be named differently on macOS or Windows).
+
+- Update ``launch.json`` to match:
+
+.. image:: img/vscode_2_launch.json.png
+
+If you're following this guide on macOS or Windows, you will have to adjust
+``godot.linuxbsd.tools.64`` accordingly.
+
+- Create a ``tasks.json`` file by starting the Debug process with :kbd:`F5`.
+  Visual Studio Code will show a dialog with a **Configure Task** button.
+  Choose it and select **Create tasks.json file from template**, then select **Others**.
+
+- Update ``tasks.json`` to match:
+
+.. image:: img/vscode_3_tasks.json.png
+
+If you're following this guide on macOS or Windows, you will have to adjust
+``platform=linuxbsd`` accordingly.
+
+- You can now start the Debug process again to test that everything works.
+- If the build phase fails, check the console for hints. On Linux, it's most
+  likely due to missing dependencies. Check :ref:`doc_compiling_for_linuxbsd`.
+
+If you run into any issues, ask for help in one of
+`Godot's community channels <https://godotengine.org/community>`__.