feat(icons): added x-line-top icon (#2838)

* Added icons/x-bar.svg

* Added icons/x-bar.json

* Rename x-bar.svg to x-line-top.svg

* Add x-line-top.json icon file

* Update icons/x-line-top.json

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Karsa <contact@karsa.org>

icons/x-line-top.json

@@ -0,0 +1,36 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "colebemis",
+    "ericfennis",
+    "jguddas"
+  ],
+  "tags": [
+    "line",
+    "top",
+    "arrow",
+    "navigation",
+    "up",
+    "pointer",
+    "direction",
+    "vector",
+    "symbol",
+    "cancel",
+    "close",
+    "delete",
+    "remove",
+    "times",
+    "clear",
+    "math",
+    "multiply",
+    "multiplication",
+    "mean",
+    "median",
+    "average",
+    "x̄"
+  ],
+  "categories": [
+    "notifications",
+    "math"
+  ]
+}

icons/x-line-top.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="M18 4H6" />
+  <path d="M18 8 6 20" />
+  <path d="m6 8 12 12" />
+</svg>