refactor: simplify state of fs store entry #381

Job	Run time
Android Build Only (armv7-linux-androideabi)	2m 8s
Cross Build Only (x86_64-unknown-freebsd)	50s
Android Build Only (aarch64-linux-android)	1m 41s
Cross Test (i686-unknown-linux-gnu)	1m 18s
clippy_check	1m 44s
Minimal Supported Rust Version	1m 5s
Checking docs	1m 8s
check_semver	1m 16s
cargo deny	26s
Checking fmt	23s
CI Test Suite / Tests (ubuntu-latest, stable, all)	1m 35s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	2m 2s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 1s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	1m 35s
CI Test Suite / Tests (ubuntu-latest, stable, default)	1m 30s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	1m 39s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 40s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	1m 59s
codespell	8s
CI Test Suite / Tests (ubuntu-latest, stable, none)	1m 31s
	27m 39s

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