Refactoring of the nix file. (#4494)

* Fix version number.

* Use the packages.x86_64-linux namespace.

* linux. prepend no longer required.

* Created build-shadps4 module.

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* Move dependency list to generator function parameters.

* Using call package to run builder.

* Pull in matching names and use inherit.

* Paths need to be wrapped in a "".

* Put , on the packages.

* And inherit does not need any , .

* Fixups.

* release and releaseWithDebugInfo now use the same builder.

* Set default pacakge to releaseWtihDebugInfo.

* Rename to build, moved down a directory and deleted modules/

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* Seperated devshell into shell.nix

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* Double ".nix"

* Nix Formatting.

* Included missing dependencies for shell.

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* Update Lock file.

* Removed old unused shell.nix.

* Collapse shell and build into flake.nix

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* Window bar patch

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* Removed unused patches list.

* As older nix shell was removed. Also remove old documentation.

documents/building-linux.md

@@ -48,12 +48,6 @@ sudo zypper install clang git cmake libasound2 libpulse-devel \
     vulkan-devel vulkan-validationlayers libpng-devel
 ```
 
-#### NixOS
-
-```bash
-nix-shell shell.nix
-```
-
 #### Nix Flake Development Shell
 ```bash
 nix develop
@@ -63,13 +57,13 @@ ln -s ./build/compile_commands.json .
 
 #### Nix Flake Build
 ```bash
-nix build .?submodules=1#linux.debug
+nix build .?submodules=1#debug
 ```
 ```bash
-nix build .?submodules=1#linux.release
+nix build .?submodules=1#release
 ```
 ```bash
-nix build .?submodules=1#linux.releaseWithDebugInfo
+nix build .?submodules=1#releaseWithDebugInfo
 ```
 #### Other Linux distributions