Documentation: Update CLion Configuration to use the x86-64 target

Since the default target is x86-64 after PR #15441 was merged, then let
us update the CLion Configuration accordingly.

Documentation/CLionConfiguration.md

@@ -4,28 +4,28 @@ CLion can integrate with CMake to provide code comprehension features.
 
 After opening the `serenity` repository in CLion as a new project, the "`Open Project Wizard`" window will open, from here set the following fields:
 
-(Assuming you use `Ninja` as the build system and configured the CMake build directory to `Build/i686`)
+(Assuming you use `Ninja` as the build system and configured the CMake build directory to `Build/x86_64`)
 
 `Build type`: `Default`
 
-> _CMake will complain with any other build type, make sure to use `Default` so that `CMAKE_BUILD_TYPE` is empty in the `Build/i686/CMakeCache.txt` file._
+> _CMake will complain with any other build type, make sure to use `Default` so that `CMAKE_BUILD_TYPE` is empty in the `Build/x86_64/CMakeCache.txt` file._
 
 `CMake Options`:
 ```
 -GNinja
--DCMAKE_TOOLCHAIN_FILE=$CMakeProjectDir$/Build/i686/CMakeToolchain.txt
+-DCMAKE_TOOLCHAIN_FILE=$CMakeProjectDir$/Build/x86_64/CMakeToolchain.txt
 -DCMAKE_PREFIX_PATH=$CMakeProjectDir$/Build/lagom-install
--DSERENITY_ARCH=i686
+-DSERENITY_ARCH=x86_64
 ```
 
 > CLion will complain that the toolchain file doesn't exist yet, if you haven't `cmake` for the SuperBuild step before. The SuperBuild configure step creates the Toolchain file.
-> To re-create the file after blasting your build directory, run `cmake -GNinja -S Meta/CMake/Superbuild -B Build/superbuild-i686` from the top level in a terminal, or simply run `./Meta/serenity.sh run`
+> To re-create the file after blasting your build directory, run `cmake -GNinja -S Meta/CMake/Superbuild -B Build/superbuild-x86_64` from the top level in a terminal, or simply run `./Meta/serenity.sh run`
 
-`Build Directory`: `Build/i686`
+`Build Directory`: `Build/x86_64`
 
 > _If you have not built the Toolchain at this point, please do so: `./Toolchain/BuildIt.sh`_
 
-> _If you have not built host tools from Lagom at this point, please do so: `./Meta/serenity.sh build` or `ninja -C Build/superbuild-i686` after running `cmake -GNinja -S Meta/CMake/Superbuild -B Build/superbuild-i686`_
+> _If you have not built host tools from Lagom at this point, please do so: `./Meta/serenity.sh build` or `ninja -C Build/superbuild-x86_64` after running `cmake -GNinja -S Meta/CMake/Superbuild -B Build/superbuild-x86_64`_
 
 If you already have the project open, you can go to `File -> Settings -> Build, Execution, Deployment -> CMake` to find these options.