improve language cookie value by adding a regex

src/technologies/p.json

@@ -1949,7 +1949,7 @@
       89
     ],
     "cookies": {
-      "pll_language": ""
+      "pll_language": "([a-z]{2})"
     },
     "description": "Polylang is a WordPress plugin which allows you to create multilingual WordPress site.",
     "dom": {
@@ -1963,6 +1963,7 @@
     "icon": "Polylang.svg",
     "oss": true,
     "requires": "WordPress",
+    "pricing": "freemium",
     "website": "https://wordpress.org/plugins/polylang"
   },
   "Polylang Pro": {
@@ -1971,7 +1972,7 @@
       89
     ],
     "cookies": {
-      "pll_language": ""
+      "pll_language": "([a-z]{2})"
     },
     "description": "Polylang is a WordPress plugin which allows you to create multilingual WordPress site.",
     "dom": {
@@ -1984,6 +1985,7 @@
     },
     "icon": "Polylang.svg",
     "oss": true,
+    "pricing": "low",
     "requires": "WordPress",
     "website": "https://polylang.pro"
   },