Room to work

Improvements:

• Tablets can now open the editor. The old size check turned away anything under 1024px wide, which included every iPad in portrait; the limit is now 768px, so tablets work and only phone-sized screens are asked to switch to a larger display.
• The message is clearer, appears in your language, and the editor no longer loads in the background on a screen that cannot show it. Resize a window or rotate a tablet across the threshold and the editor appears or steps aside immediately, with no reload.