Major Updates to Optimum Realism

To simplify the installation for newfangled users, I've implemented multiple changes to the overall system, substituting and streamlining the site interface, how users get their digital downloads delivered, the post composition, and much more.
As a result, to avoid confusion I'm removing the following mirror versions of Optimum Realism:
- Optimum Realism OldPBR/[SEUS Only]
- Optimum Realism for Bedrock Edition Mobile (pre-Renderdragon update) (Substituted with the newer all-device-supported Bedrock Edition compatible with Raytracing and many PBR mobile shaders post-Renderdragon update)
- The SEUS PBR version of Optimum Realism is rarely used on most platforms.
- Most users use the LabPBR version for SEUS Shaders as well.
- The overall popularity of SEUS shaders has diminished substantially, therefore, making a separate version for the shader is now deemed unnecessary.
- There is very little to no visual difference for most scenarios whilst using the LabPBR version of Optimum Realism for the SEUS Shaders, for the average user.
- The older mobile-only version of Optimum Realism was only for players who still used the pre-renderdragon update of Minecraft when support for PBR on mobile was not available on the renderdragon update. However, this is not the case anymore and the Bedrock version for Windows will work on mobile devices as well with most PBR mobile shaders as it is.
I've written down my reasoning in detail because I believe it is my responsibility to justify the changes that I'm making to make affected users understand why this implication was made.

Have a terrific day folks!