add detection of Polylang language switcher

src/technologies/p.json

@@ -1952,7 +1952,11 @@
       "pll_language": ""
     },
     "description": "Polylang is a WordPress plugin which allows you to create multilingual WordPress site.",
-    "dom": "img[src*='/wp-content/plugins/polylang/']",
+    "dom": {
+      "#pll_switcher": {
+        "exists": ""
+      }
+    },
     "headers": {
       "x-redirected-by": "Polylang"
     },
@@ -1970,7 +1974,11 @@
       "pll_language": ""
     },
     "description": "Polylang is a WordPress plugin which allows you to create multilingual WordPress site.",
-    "dom": "img[src*='/wp-content/plugins/polylang/']",
+    "dom": {
+      "#pll_switcher": {
+        "exists": ""
+      }
+    },
     "headers": {
       "x-redirected-by": "Polylang Pro"
     },