doc: fix Vulkan extension links to not point to the single page docs.

Because it's excessively huge and slow.

Doxyfile

@@ -303,7 +303,7 @@ ALIASES                = \
     "type_vk{1}=<a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/Vk\1.html\">Vk\1</a>" \
     "def_vk{2}=<a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/Vk\2.html\">VK_\1</a>" \
     "requires_vk_extension=@xrefitem requires-vk-extension \"Requires Vulkan extension\" \"Functionality requiring specific Vulkan extension\"" \
-    "vk_extension{2}= <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/chap44.html#VK_\1_\2\">\1_\2</a>" \
+    "vk_extension{2}= <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VK_\1_\2.html\">\1_\2</a>" \
     "fn_al{1}=`al\1()`" \
     "fn_alc{1}=`alc\1()`" \
     "def_al{1}=`AL_\1`" \

Doxyfile-mcss

@@ -60,7 +60,7 @@ ALIASES                = \
     "type_vk{1}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/Vk\1.html\">Vk\1</a>" \
     "def_vk{2}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/Vk\2.html\">VK_\1</a>" \
     "requires_vk_extension=@xrefitem requires-vk-extension \"Requires Vulkan extension\" \"Functionality requiring specific Vulkan extension\"" \
-    "vk_extension{2}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/chap44.html#VK_\1_\2\">\1_\2</a>" \
+    "vk_extension{2}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VK_\1_\2.html\">\1_\2</a>" \
     "fn_al{1}=@m_class{m-doc-external} <a href=\"https://github.com/kcat/openal-soft/wiki/Programmer's-Guide#al\1\">al\1()</a>" \
     "fn_alc{1}=@m_class{m-doc-external} <a href=\"https://github.com/kcat/openal-soft/wiki/Programmer's-Guide#alc\1\">alc\1()</a>" \
     "def_al{1}=`AL_\1`" \

Doxyfile-public

@@ -56,7 +56,7 @@ ALIASES                = \
     "type_vk{1}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/Vk\1.html\">Vk\1</a>" \
     "def_vk{2}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/Vk\2.html\">VK_\1</a>" \
     "requires_vk_extension=@xrefitem requires-vk-extension \"Requires Vulkan extension\" \"Functionality requiring specific Vulkan extension\"" \
-    "vk_extension{2}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/chap44.html#VK_\1_\2\">\1_\2</a>" \
+    "vk_extension{2}=@m_class{m-doc-external} <a href=\"https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VK_\1_\2.html\">\1_\2</a>" \
     "fn_al{1}=@m_class{m-doc-external} <a href=\"https://github.com/kcat/openal-soft/wiki/Programmer's-Guide#al\1\">al\1()</a>" \
     "fn_alc{1}=@m_class{m-doc-external} <a href=\"https://github.com/kcat/openal-soft/wiki/Programmer's-Guide#alc\1\">alc\1()</a>" \
     "def_al{1}=`AL_\1`" \