new icon: novelwriter (original,plain) (#2603)

Co-authored-by: Patrik Wehrli <patrik.wehrli@gmail.com>

Author: Yashh56

devicon.json

@@ -9095,6 +9095,25 @@
         "color": "#fff",
         "aliases": []
     },
+    {
+        "name": "novelwriter",
+        "altnames": [],
+        "tags": [
+            "editor",
+            "text editor"
+        ],
+        "versions": {
+            "svg": [
+                "original",
+                "plain"
+            ],
+            "font": [
+                "plain"
+            ]
+        },
+        "color": "#346598",
+        "aliases": []
+    },
     {
         "name": "npm",
         "altnames": [