Add French Language Support (#9)

* Add French to i18n.json

* Fixed syntax error, overflow

i18n.json

 {
-  "lan": ["cn", "en"],
+  "lan": ["cn", "en", "fr"],
   "default": "cn",
   "data": {
     "title": {
       "cn": "俄罗斯方块",
-      "en": "T E T R I S"
+      "en": "T E T R I S",
+      "fr": "T E T R I S"
     },
     "github": {
       "cn": "GitHub",
-      "en": "GitHub"
+      "en": "GitHub",
+      "fr": "GitHub"
     },
     "linkTitle": {
       "cn": "查看源代码",
-      "en": "View data source"
+      "en": "View data source",
+      "fr": "Afficher la source des données"
     },
     "QRCode":{
       "cn": "二维码",
-      "en": "QR code"
+      "en": "QR code",
+      "fr": "QR code"
     },
     "QRNotice": {
       "cn": "扫一扫用手机玩",
-      "en": "Scan QR code to play with a mobile phone"
+      "en": "Scan QR code to play with a mobile phone",
+      "fr": "Numérisez le code QR pour jouer avec un téléphone mobile"
     },
     "titleCenter": {
       "cn": "俄罗斯方块<br />TETRIS",
-      "en": "TETRIS"
+      "en": "TETRIS",
+      "fr": "TETRIS"
     },
     "point": {
       "cn": "得分",
-      "en": "Point"
+      "en": "Point",
+      "fr": "Score"
     },
     "highestScore": {
       "cn": "最高分",
-      "en": "Max"
+      "en": "Max",
+      "fr": "Max"
     },
     "lastRound": {
       "cn": "上轮得分",
-      "en": "Last Round"
+      "en": "Last Round",
+      "fr": "Dernier Tour"
     },
     "cleans": {
       "cn": "消除行",
-      "en": "Cleans"
+      "en": "Cleans",
+      "fr": "Lignes"
     },
     "level": {
       "cn": "级别",
-      "en": "Level"
+      "en": "Level",
+      "fr": "Difficulté"
     },
     "startLine": {
       "cn": "起始行",
-      "en": "Start Line"
+      "en": "Start Line",
+      "fr": "Ligne Départ"
     },
     "next": {
       "cn": "下一个",
-      "en": "Next"
+      "en": "Next",
+      "fr": "Prochain"
     },
     "pause": {
       "cn": "暂停",
-      "en": "Pause"
+      "en": "Pause",
+      "fr": "Pause"
     },
     "sound": {
       "cn": "音效",
-      "en": "Sound"
+      "en": "Sound",
+      "fr": "Sonore"
     },
     "reset": {
       "cn": "重玩",
-      "en": "Reset"
+      "en": "Reset",
+      "fr": "Réinitialiser"
     },
     "rotation": {
       "cn": "旋转",
-      "en": "Rotation"
+      "en": "Rotation",
+      "fr": "Rotation"
     },
     "left": {
       "cn": "左移",
-      "en": "Left"
+      "en": "Left",
+      "fr": "Gauche"
     },
     "right": {
       "cn": "右移",
-      "en": "Right"
+      "en": "Right",
+      "fr": "Droite"
     },
     "down": {
       "cn": "下移",
-      "en": "Down"
+      "en": "Down",
+      "fr": "Bas"
     },
     "drop": {
       "cn": "掉落",
-      "en": "Drop"
+      "en": "Drop",
+      "fr": "Tomber"
     }
   }
 }