Fix Excel VBA not functioning

[IsakNaslundBh]

Issues addressed by this PR

Closes #355

When the DNA plugin was updated in https://github.com/BHoM/Excel_UI/pull/342 the ComServer="true" was missed, which made the VBA not registering and functioning correctly.

This remedies that issue.

Test files

https://burohappold.sharepoint.com/:f:/s/BHoM/Ep4DW3joYwtCqimPTsdNVAcBMXdE5YGr58gf5jpkirYElQ?e=XaVYcP

Changelog

Additional comments

[IsakNaslundBh]

@BHoMBot check compliance @BHoMBot check required

[bhombot-ci[bot]]

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[FraserGreenroyd]

@BHoMBot check ready-to-merge

[FraserGreenroyd]

@BHoMBot check ready-to-merge

[bhombot-ci[bot]]

@FraserGreenroyd to confirm, the following actions are now queued: - check `ready-to-merge`