fix(clippy): fix new clippy findings

[Xenira]

Some clippy findings were ignored as they require further investigation. Those findings are marked with a comment and will be tracked in #461.

Refs: #461

[coveralls]

Pull Request Test Coverage Report for Build 15996795799

Details

• 2 of 3 (66.67%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 20.545%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/embed/mod.rs	2	3	66.67%

Totals
Change from base Build 15925504022:	0.0%
Covered Lines:	761
Relevant Lines:	3704

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💛 - Coveralls