Refactor vfs code - #652

[clippy] reported by reviewdog 🐶 warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference --> moss/src/package/render.rs:150:19 | 150 | fn to_section(self) -> Option<String> { | ^^^^ | = help: consider choosing a less ambiguous name = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.92.0/index.html#wrong_self_convention = note: `#[warn(clippy::wrong_self_convention)]` on by default Raw Output: moss/src/package/render.rs:150:19:w:warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference --> moss/src/package/render.rs:150:19 | 150 | fn to_section(self) -> Option<String> { | ^^^^ | = help: consider choosing a less ambiguous name = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.92.0/index.html#wrong_self_convention = note: `#[warn(clippy::wrong_self_convention)]` on by default __END__