Upgrade vue3#11

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DumbergerL wants to merge 3 commits intocornflourblue:masterfrom

DumbergerL:upgrade-vue3

Commits on Nov 27, 2020

chore(dependencies): update vue / webpack version
Lukas Dumberger
committed
fix(webpack): remove unused js-loader
Lukas Dumberger
committed
fix(vue3): remove deprecated element $listeners
Lukas Dumberger
committed