feat(nutrition): change meal of logged food via edit pills or drag-and-drop

Edit mode now shows a pill row (breakfast/lunch/dinner/snack with their
icons) beneath the grams input so the entry can be moved to another meal.
Food cards are also draggable; dropping onto a different meal section
optimistically moves the entry (rolls back on API error). Desktop/pointer
only — touch devices use the pill row.

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.31.0",
+	"version": "1.31.1",
 	"private": true,
 	"type": "module",
 	"scripts": {