chore: add build note for Windows

docs/building-win-x64.md

@@ -36,3 +36,48 @@ Go to ***BuildPath*\\tdesktop\\Telegram** and run
 * Open ***BuildPath*\\tdesktop\\out\\Telegram.sln** in Visual Studio 2022
 * Select Telegram project and press Build > Build Telegram (Debug and Release configurations)
 * The result AyuGram.exe will be located in **D:\TBuild\tdesktop\out\Debug** (and **Release**)
+
+If you encounter issue like `error C1090: PDB API call failed, error code '12'` on Release build, apply the following patch in `tdesktop/cmake` folder (via pwsh or manually):
+
+```diff
+@'
+diff --git a/options_win.cmake b/options_win.cmake
+index c2d66cf..ccceb53 100644
+--- a/options_win.cmake
++++ b/options_win.cmake
+@@ -32,6 +32,7 @@ if (MSVC)
+       /utf-8
+       /W4
+       /MP     # Enable multi process build.
++        /FS
+       /EHsc   # Catch C++ exceptions only, extern C functions never throw a C++ exception.
+       /w15038 # wrong initialization order
+       /w14265 # class has virtual functions, but destructor is not virtual
+@@ -64,7 +65,7 @@ if (MSVC)
+   INTERFACE
+       $<$<CONFIG:Debug>:/NODEFAULTLIB:LIBCMT>
+       $<$<AND:$<CONFIG:Debug>,$<BOOL:${build_win64}>>:/DEBUG:FASTLINK>
+-        $<$<NOT:$<AND:$<CONFIG:Debug>,$<BOOL:${build_win64}>>>:$<IF:$<STREQUAL:$<GENEX_EVAL:
+$<TARGET_PROPERTY:MSVC_DEBUG_INFORMATION_FORMAT>>,ProgramDatabase>,/DEBUG,/DEBUG:NONE>>
++        $<$<NOT:$<AND:$<CONFIG:Debug>,$<BOOL:${build_win64}>>>:$<IF:$<BOOL:$<GENEX_EVAL:
+$<TARGET_PROPERTY:MSVC_DEBUG_INFORMATION_FORMAT>>>,/DEBUG,/DEBUG:NONE>>
+       $<$<NOT:$<CONFIG:Debug>>:/OPT:REF>
+       /INCREMENTAL:NO
+       /DEPENDENTLOADFLAG:0x800
+diff --git a/variables.cmake b/variables.cmake
+index d6ac6c5..b2f492a 100644
+--- a/variables.cmake
++++ b/variables.cmake
+@@ -21,7 +21,9 @@ if (DESKTOP_APP_SPECIAL_TARGET STREQUAL ""
+endif()
+
+set(CMAKE_CXX_SCAN_FOR_MODULES OFF CACHE BOOL "")
+-set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT "ProgramDatabase" CACHE STRING "")
++set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT
++    "$<$<CONFIG:Debug,RelWithDebInfo>:ProgramDatabase>$<$<CONFIG:Release,MinSizeRel>:Embedded>"
++    CACHE STRING "" FORCE)
+set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>" CACHE STRING "")
+option(DESKTOP_APP_TEST_APPS "Build test apps, development only." OFF)
+option(DESKTOP_APP_LOTTIE_DISABLE_RECOLORING "Disable recoloring of lottie animations." OFF)
+'@ | git -C cmake apply -
+```