Ports: Improve consistency and quality of ports

- Replaced /Root with
- Improved documentation.
- Removed a few typos.
- Replaced  with
- Added brackets in some cases.

Most of the changes were reviewed and applied manually.

Ports/cmatrix/package.sh

@@ -13,5 +13,5 @@ configure() {
 }
 
 install() {
-    run cp cmatrix "${SERENITY_BUILD_DIR}/Root/bin"
+    run cp cmatrix "${SERENITY_INSTALL_ROOT}/bin"
 }