adding linkfire icon (#6620)

* adding linkfire icon

* removed northfacesrc, fixed linkfire / LinkedIn data mix up

* removed northfacesrc, fixed linkfire / LinkedIn data mix up

* fixing lint issues with simple-icons

* uppercase title

Co-authored-by: Sachin Raja <sachinraja2349@gmail.com>

_data/simple-icons.json

@@ -5672,6 +5672,11 @@
             "source": "https://brand.linkedin.com",
             "guidelines": "https://brand.linkedin.com/policies"
         },
+        {
+            "title": "Linkfire",
+            "hex": "FF3850",
+            "source": "https://www.linkfire.com/"
+        },
         {
             "title": "Linktree",
             "hex": "39E09B",

icons/linkfire.svg

@@ -0,0 +1 @@
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Linkfire</title><path d="M10.08 1.997A10.041 10.042 0 0 0 0 12.006a10.041 10.042 0 0 0 10.08 10 10.037 10.038 0 0 0 7.12-2.933c2.883-2.796 4.509-8.065 5.775-12.861l.038-.152.09-.343a.227.227 0 0 0-.038-.197.234.234 0 0 0-.185-.09h-1.711a.23.23 0 0 1-.215-.14.227.227 0 0 1 .053-.25l2.925-2.646v-.011a.23.23 0 0 0 .053-.246.23.23 0 0 0-.216-.143zm.385 4.645h3.847a1.686 1.686 0 0 1 1.682 1.686v3.844a1.686 1.686 0 0 1-1.682 1.686H10.47a1.686 1.686 0 0 1-1.684-1.686v-.722h1.442v.722a.246.246 0 0 0 .242.242h3.848a.242.242 0 0 0 .242-.242V8.324a.242.242 0 0 0-.242-.242H10.47a.242.242 0 0 0-.242.242v.722H8.784v-.718a1.686 1.686 0 0 1 1.684-1.686zM7.582 9.526h3.84a1.686 1.686 0 0 1 1.684 1.686v.718h-1.44v-.718a.242.242 0 0 0-.24-.242H7.577a.242.242 0 0 0-.242.242v3.847a.242.242 0 0 0 .242.242h3.847a.242.242 0 0 0 .241-.242v-.718h1.448v.718a1.686 1.686 0 0 1-1.686 1.682H7.582a1.686 1.686 0 0 1-1.69-1.682v-3.847a1.686 1.686 0 0 1 1.69-1.686z"/></svg>