Too slow monomer library load

[AliaksandrDziarkach]

Monomer library takes about 3 seconds to load wich is too slow.

[AlexeyGirin]

Verified.

• Indigo Toolkit Version 1.21.0-rc.1.0-g9194599b2-wasm32-wasm-clang-19.0.0
• Ketcher Version 2.22.0-rc.2 Build at 2024-06-03; 18:43:00
• Chrome Version 125.0.6422.142 (Official Build) (64-bit)
• Windows 10