Resolve "Filter na tabulku dostupných modulů"

Closes #49

docs.it4i/snippets/modules_matrix_search.md

+<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.slim.min.js" integrity="sha256-/SIrNqv8h6QGKDuNoLGA4iret+kyesCkHGzVUUV0shc=" crossorigin="anonymous"></script>
+<script>
+$("#searchInput").keyup(function () {
+    //split the current value of searchInput
+    var data = this.value.split(" ");
+    //create a jquery object of the rows
+    var jo = $("tbody").find("tr");
+    if (this.value == "") {
+        jo.show();
+        return;
+    }
+    //hide all the rows
+    jo.hide();
+
+    //Recusively filter the jquery object to get results.
+    jo.filter(function (i, v) {
+        var $t = $(this);
+        for (var d = 0; d < data.length; ++d) {
+            if ($t.is(":contains('" + data[d] + "')")) {
+                return true;
+            }
+        }
+        return false;
+    })
+    //show the rows that match.
+    .show();
+}).focus(function () {
+    this.value = "";
+    $(this).css({
+        "color": "black"
+    });
+}).css({
+	    "color": "#C0C0C0"
+});
+</script>