SelectionProvider stores the entire elements in an array

[todo]

cozy-banks/src/ducks/context/SelectionContext.jsx

Lines 18 to 23 in 79c5070

	// TODO: SelectionProvider stores the entire elements in an array
	// instead of just their ids. This is not critical since we
	// imagine that there are quite few elements.
	// But an improvement would be to store only the ids.
	const SelectionProvider = ({ children }) => {
	const [isSelectionModeActive, setIsSelectionModeActive] = useState(false)

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This issue was generated by todo based on a TODO comment in 79c5070 when #2130 was merged. cc @cozy.