Snakie v0.85.4

What's Changed

• Cut the 0.84.1 release by @kevinmcaleer in #1184
• Add a 400-point breadboard part to the Standard library by @kevinmcaleer in #1185
• Blocks: zoom to fit centres the blocks in the canvas by @kevinmcaleer in #1186
• PDF export: draw parts whose library id no longer matches, instead of "part library not installed" by @kevinmcaleer in #1187
• Save the active file on Cmd/Ctrl+S from anywhere in the window by @kevinmcaleer in #1188
• Add a 3-D model to the Yellow TT Motor part by @kevinmcaleer in #1189
• Lay the TT motor mesh flat and give the part its real footprint by @kevinmcaleer in #1190

Full Changelog: v0.84.1...v0.85.4