docs: Physical layout docs improvements (#2533)

* docs: Added layout configuration reference page
* docs: Refactored and revamped physical layout creation information
* docs: Added note in studio features page
* docs: added studio_unlock note in features section
---------

Co-authored-by: Cem Aksoylar <caksoylar@users.noreply.github.com>
Co-authored-by: Joel Spadin <joelspadin@gmail.com>
Co-authored-by: Peter Johanson <peter@peterjohanson.com>

docs/sidebars.js

@@ -110,6 +110,7 @@ module.exports = {
         "config/displays",
         "config/encoders",
         "config/keymap",
+        "config/layout",
         "config/kscan",
         "config/power",
         "config/underglow",
@@ -125,9 +126,9 @@ module.exports = {
           collapsed: true,
           items: [
             "development/hardware-integration/new-shield",
+            "development/hardware-integration/physical-layouts",
             "development/hardware-integration/hardware-metadata-files",
             "development/hardware-integration/boards-shields-keymaps",
-            "development/hardware-integration/studio-setup",
             "development/hardware-integration/shift-registers",
             "development/hardware-integration/encoders",
           ],