feat(icons): added book-alert icon (#3249)

* Added icons/book-alert.json

* Added icons/book-alert.svg

* Updated icons/book-alert.svg

Indentation fix

* Updated icons/book-alert

* Updated icons/book-alert.svg

* Updated icons/book-alert.json

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>

icons/book-alert.json

@@ -0,0 +1,51 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "colebemis",
+    "csandman",
+    "ericfennis",
+    "karsa-mistmere",
+    "lscheibel",
+    "domasmark"
+  ],
+  "tags": [
+    "reading",
+    "paperback",
+    "booklet",
+    "magazine",
+    "leaflet",
+    "pamphlet",
+    "tome",
+    "library",
+    "writing",
+    "written",
+    "writer",
+    "author",
+    "story",
+    "script",
+    "fiction",
+    "novel",
+    "information",
+    "knowledge",
+    "education",
+    "high school",
+    "university",
+    "college",
+    "academy",
+    "student",
+    "study",
+    "learning",
+    "homework",
+    "research",
+    "documentation",
+    "warning",
+    "alert",
+    "danger",
+    "exclamation mark"
+  ],
+  "categories": [
+    "text",
+    "development",
+    "gaming"
+  ]
+}

icons/book-alert.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M12 13h.01" />
+  <path d="M12 6v3" />
+  <path d="M4 19.5v-15A2.5 2.5 0 0 1 6.5 2H19a1 1 0 0 1 1 1v18a1 1 0 0 1-1 1H6.5a1 1 0 0 1 0-5H20" />
+</svg>