Upgrades to Electron 18.1.0

Improves Windows drag/drop progress window

Fixes crashes/hangs when using drag/drop

Adds Cmd+Shift+V pasteAndMatchStyle shortcut

Fixes issue with composer window opening too small on an external monitor

Fixes issue with missing file extension when saving messages/attachments

Builds:

• https://dl.frontapp.com/desktop/builds/3.33.11/Front-3.33.11-arm64.dmg 

• https://dl.frontapp.com/desktop/builds/3.33.11/Front-3.33.11-x64.dmg

• https://dl.frontapp.com/desktop/builds/3.33.11/Front-machine-3.33.11.exe 

• https://dl.frontapp.com/desktop/builds/3.33.11/Front-user-3.33.11.exe