add rat icon (#936)

* add rat icon

* Update icons/rat.json

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Update rat.svg

---------

Co-authored-by: Karsa <contact@karsa.org>
Co-authored-by: Jakob Guddas <github@jguddas.de>

icons/rat.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "animal",
+    "mouse",
+    "mice",
+    "rodent",
+    "pet",
+    "pest",
+    "plague"
+  ],
+  "categories": [
+    "animals"
+  ]
+}

icons/rat.svg

@@ -0,0 +1,18 @@
+<svg 
+    width="24" 
+    height="24" 
+    viewBox="0 0 24 24" 
+    version="1.1" 
+    xmlns="http://www.w3.org/2000/svg"  
+    fill="none"
+    stroke="currentColor"
+    stroke-width="2"
+    stroke-linecap="round"
+    stroke-linejoin="round"
+>    
+  <path d="M14 16.5v-.77a2.73 2.73 0 0 1 3.27-2.68l3.02.6a1.4 1.4 0 0 0 1.5-2.08l-1.63-2.8a3 3 0 1 0-3.35-4.82" />
+  <path d="M16 9h-.01" />
+  <path d="M17 5.12V5a3 3 0 1 0-5.24 2h-1A6.77 6.77 0 0 0 4 13.77C4 16.1 5.9 18 8.23 18H9" />
+  <path d="M13 22H4a2 2 0 1 1 0-4h12" />
+  <path d="M13.67 18c.21-.44.33-.94.33-1.45A3.65 3.65 0 0 0 10.26 13" />
+</svg>