Merge pull request #2447 from weh/feature/1856-intellij

update icon: intellij (original, original-wordmark, plain, plain-wordmark)

Author: canaleal

devicon.json

@@ -5729,7 +5729,7 @@
                 "plain-wordmark"
             ]
         },
-        "color": "#087cfa",
+        "color": "#000000",
         "aliases": []
     },
     {