Add duration format to battery block #217

Job	Run time
pre-commit (check-toml)	58s
pre-commit (check-yaml)	1m 2s
pre-commit (check-merge-conflict)	1m 8s
pre-commit (check-case-conflict)	1m 17s
pre-commit (detect-private-key)	55s
pre-commit (mixed-line-ending)	59s
pre-commit (trailing-whitespace)	59s
pre-commit (cspell)	1m 12s
pre-commit (typos)	56s
pre-commit (cargo-fmt)	56s
pre-commit (cargo-clippy)	2m 26s
pre-commit (cargo-test)	2m 57s
pre-commit (verify_icon_files)	1m 6s
	16m 51s

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