layout(preonic): update to dudeofawesome's layout (#2507)
* 🎉 duplicate default Preonic keymap
* ✨ add Workman layout
* 🚚 swap backspace and delete
* ✨ enable hold enter for shift
* 🚚 swap media play and next
* 💄 use Planck startup sound
* 💄 add Workman layer sound
* ✨ add numpad layer
* 💄 add new workman sound
* 📝 add README
* 🎨 fix layout formatting
* 📝 add image of numpad layer
* 📦 changing chibios submodule version
to match upstream/master's version
* ✨ add caps lock key on adjust layer
* ✨ reworking numpad layer to match a real numpad
* ✨ add double tap to activate numpad
* 📝 fix layout comments
* 📝 update numpad layer render
* ✨ adding operator keys to left hand on numpad
* 🎨 shorten numpad keycodes
* 🎨 remove redundant breaks
* 📝 update numpad layer render
* 🎨 fix indentation
* 🔧 add rules file
* ✨🔊 play sound when switching to numpad layer
* 🔨 use userspace sounds
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