docs: update chip name to Matter and misc edits (#10561)

* doc: update CHIP name on intro pages

Update CHIP to Matter in top-level readme and contributing.md.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

* doc: update CHIP name in generic examples

Updated CHIP to Matter in non-nrfconnect generic examples.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

* doc: update CHIP name on nrfconnect pages

Updated CHIP to Matter on nrfconnect pages.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

* doc: update CHIP name in tool guides

Updated CHIP to Matter in tool guides.
Updated structure of the Android guide.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

* doc: update CHIP name in docs/ files

Changed CHIP to Matter in md files in docs/.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

* Restyled by prettier-markdown

* wordlist: add CSA term

Updated .wordlist with CSA.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

Co-authored-by: Restyled.io <commits@restyled.io>
diff --git a/examples/shell/README_DEVICE.md b/examples/shell/README_DEVICE.md
index aa4371b..2ca8ae1 100644
--- a/examples/shell/README_DEVICE.md
+++ b/examples/shell/README_DEVICE.md
@@ -1,6 +1,6 @@
-# CHIP Shell - Device Layer module
+# Matter Shell - Device Layer module
 
-The chip::DeviceLayer APIs may be invoked via the CHIP Shell CLI.
+The chip::DeviceLayer APIs may be invoked via the Matter Shell CLI.
 
 ## Command List
 
@@ -75,7 +75,7 @@
 
 ### start
 
-Initialize the chip stack and start the device layer event loop.
+Initialize the Matter stack and start the device layer event loop.
 
 ```bash
 > device start