CSE Machine: Fix environment reset instruction insertion

[NhatMinh0208]

Description

This PR fixes the condition for inserting an environment reset instruction so that they are still inserted when the control stack has no nodes.

Resolves #1506, resolves #1520.

Changes

• [X] fix condition for inserting environment reset instruction

[coveralls]

Pull Request Test Coverage Report for Build 7947329845

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.006%) to 81.585%

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Files with Coverage Reduction	New Missed Lines	%
src/cse-machine/utils.ts	1	86.28%
<!--	Total:	1		-->

Totals
Change from base Build 7946831132:	-0.006%
Covered Lines:	10213
Relevant Lines:	12091

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💛 - Coveralls

[NhatMinh0208]

Changes look good, is this PR ready? If yes, let's mark it as ready and merge it quickly so that the workflows are fixed.

Yeah it's ready now, lets get it merged