fix: Changing way to sell with demand

public/locales/en.json

@@ -1,5 +1,7 @@
 {
-  "meta": { "name": "English" },
+  "meta": {
+    "name": "English"
+  },
   "ui": {
     "theme": "Theme",
     "language": "Language",
@@ -25,12 +27,15 @@
     "makeYield": "+{amount} per click",
     "batchInfo": "+{amount} {@theme.res.material} · {trend} {cost}",
     "marketingInfo": "Level {level} → demand ×{multiplier} · {cost}",
-    "hintFair": "At or below the fair price ({fair}) demand is at its maximum: lowering the price sells nothing more.",
-    "hintHigh": "Customers want {demand}/s at this price. Above the fair price ({fair}) demand drops fast.",
     "owned": "Owned: {count}",
     "rateEach": "{rate}/s each",
     "buyN": "Buy ×{count}",
-    "upgradeCount": "{owned} / {total}"
+    "upgradeCount": "{owned} / {total}",
+    "hintDemand": "At this price customers want {demand}/s; you make {production}/s.",
+    "hintDemandOnly": "At this price customers want {demand}/s.",
+    "marketShort": "Demand outpaces your output: you are selling too cheap.",
+    "marketLong": "You make more than customers want: stock piles up. Try a lower price.",
+    "marketBalanced": "Supply and demand are about even."
   },
   "effect": {
     "click_mult": "Manual work ×{value}",

public/locales/fr.json

@@ -1,5 +1,7 @@
 {
-  "meta": { "name": "Français" },
+  "meta": {
+    "name": "Français"
+  },
   "ui": {
     "theme": "Thème",
     "language": "Langue",
@@ -25,12 +27,15 @@
     "makeYield": "+{amount} par clic",
     "batchInfo": "+{amount} {@theme.res.material} · {trend} {cost}",
     "marketingInfo": "Niveau {level} → demande ×{multiplier} · {cost}",
-    "hintFair": "Au prix juste ({fair}) ou en dessous, la demande est maximale : baisser le prix ne vend rien de plus.",
-    "hintHigh": "Les clients veulent {demand}/s à ce prix. Au-dessus du prix juste ({fair}), la demande chute vite.",
     "owned": "Possédé : {count}",
     "rateEach": "{rate}/s chacun",
     "buyN": "Acheter ×{count}",
-    "upgradeCount": "{owned} / {total}"
+    "upgradeCount": "{owned} / {total}",
+    "hintDemand": "À ce prix, les clients veulent {demand}/s ; vous produisez {production}/s.",
+    "hintDemandOnly": "À ce prix, les clients veulent {demand}/s.",
+    "marketShort": "La demande dépasse votre production : vous vendez trop bon marché.",
+    "marketLong": "Vous produisez plus que la demande : le stock s'accumule. Essayez un prix plus bas.",
+    "marketBalanced": "L'offre et la demande sont à peu près égales."
   },
   "effect": {
     "click_mult": "Travail manuel ×{value}",