Bump electron from 8.5.2 to 18.3.7 in /lib/drawio/src/main/webapp#21

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dependabot/npm_and_yarn/lib/drawio/src/main/webapp/electron-18.3.7softrams/former2:dependabot/npm_and_yarn/lib/drawio/src/main/webapp/electron-18.3.7Copy head branch name to clipboard