v0.2.3

更新内容

• feat(mac): add image editor zoom controls
• fix(mac): constrain zoom overlay to canvas
• fix(mac): match zoom overlay to Shottr scale
• fix(mac): remove default toolbar icon backgrounds
• fix(mac): resample color after canvas viewport changes
• fix(mac): align color sampling with stepped zoom
• feat(mac): add Shottr-style canvas selection
• fix(mac): correct image editor color sampling