Tweak Cargo settings for the Release profile

[zamazan4ik]

Hi!

Thank you for the project! Just an hour ago needed to find a solution exactly like yours, and found this application :)

During the compilation for my local use (on Fedora), I found that default Cargo options for the Release build can be optimized, so users by default will get a smaller binary (with at least the same performance) by enabling additional stable Cargo flags for the Release profile.

I have made quick tests (AMD Ryzen 9 5900x, Fedora 43, Rust 1.92, the latest version of the project at the moment, cargo build --release --no-default-features -F gui,ffmpeg,pulse,mpris command) - here are the results:

• Release (the current profile): 9.8 Mib, clean build time: 35s
• Release + FullLTO + CU1: 6.2 Mib, clean build time: 1m 02s
• Ripgrep profile: 4.9 Mib, clean build time: 59s

Release + FullLTO + CU1 profile:

[profile.release]
codegen-units = 1
lto = "fat"

Ripgrep profile (inspired by this):

[profile.release]
opt-level = 3
debug = "none"
strip = "symbols"
debug-assertions = false
overflow-checks = false
lto = "fat"
panic = "abort"
incremental = false
codegen-units = 1

Build time increase shouldn't be a problem since we enable it only for the Release profile.

Thank you.