fix(app): remove padding from lpc flex box (#15152) #32886

Job	Run time
Determine build variant and type	1s
opentrons app backend unit tests on windows-2022	10m 38s
opentrons app frontend unit tests	13m 2s
opentrons app backend unit tests on ubuntu-22.04	3m 11s
opentrons app backend unit tests on macos-11	9m 35s
Build release desktop app on windows-2022	12m 37s
Build release desktop app on ubuntu-22.04	5m 57s
Build release odd app on ubuntu-22.04	3m 20s
Build release desktop app on macos-11	7m 12s
Deploy built app artifacts to S3	1s
	1h 5m 34s

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