build: add appropriate compile flags based on cmake config

[ViTeXFTW]

• Closes build: add appropriate compile flags to cmake presets #34

Greptile Overview

Greptile Summary

Removes LTO (Link-Time Optimization) flags from non-MSVC compiler builds while keeping appropriate optimization and debug flags for each configuration.

• For Debug builds: -O0 (no optimization) and -g (debug symbols)
• For Release builds: -O3 (aggressive optimization) without LTO
• Removed both -flto compile and link options that were added in the previous commit

Confidence Score: 5/5

• Safe to merge - removes LTO flags that may have been causing build issues
• Changes are straightforward build configuration adjustments that remove LTO optimization flags while preserving essential Debug/Release optimization levels. No functional code changes or risks introduced.
• No files require special attention

Important Files Changed

Filename	Overview
CMakeLists.txt	Removed LTO flags from non-MSVC builds, keeping appropriate optimization flags for Debug/Release configs

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