refactor: simplify state of fs store entry #366

Job	Run time
Cross Build Only (x86_64-unknown-freebsd)	51s
Android Build Only (armv7-linux-androideabi)	1m 12s
Android Build Only (aarch64-linux-android)	1m 9s
codespell	7s
check_semver	1m 14s
clippy_check	1m 54s
Checking docs	57s
Cross Test (i686-unknown-linux-gnu)	1m 26s
Checking fmt	24s
cargo deny	25s
Minimal Supported Rust Version	1m 3s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 57s
CI Test Suite / Tests (ubuntu-latest, stable, default)	1m 11s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	1m 34s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	2m 4s
CI Test Suite / Tests (ubuntu-latest, stable, all)	1m 37s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	1m 35s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 43s
CI Test Suite / Tests (ubuntu-latest, stable, none)	1m 29s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 5s
	25m 57s

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