fix: update version to 0.31.12 in documentation and constants

doc/en/main-page.md

@@ -1,6 +1,6 @@
 # Documentation
 
-Documentation for 0.31.1.
+Documentation for 0.31.12.
 
 > [!WARNING]
 > Version is in development. Proceed to [Documentation for 0.30.](https://github.com/MihailRis/voxelcore/blob/release-0.30/doc/en/main-page.md)

doc/ru/main-page.md

@@ -1,6 +1,6 @@
 # Документация
 
-Документация версии 0.31.1.
+Документация версии 0.31.12.
 
 > [!WARNING]
 > Версия находится в разработке. Перейдите к [документации для 0.30.](https://github.com/MihailRis/voxelcore/blob/release-0.30/doc/ru/main-page.md)

res/content/base/package.json

@@ -1,6 +1,6 @@
 {
     "id": "base",
     "title": "Base",
-    "version": "0.31.1",
+    "version": "0.31.12",
     "description": "basic content package"
 }

src/constants.hpp

@@ -14,7 +14,7 @@ inline constexpr bool ENGINE_DEBUG_BUILD = false;
 inline constexpr bool ENGINE_DEBUG_BUILD = true;
 #endif // NDEBUG
 
-inline const std::string ENGINE_VERSION_STRING = "0.31.1";
+inline const std::string ENGINE_VERSION_STRING = "0.31.12";
 
 /// @brief world regions format version
 inline constexpr uint REGION_FORMAT_VERSION = 3;