feat(icons): added waves-ladder icon (#2529)

* Added icons/ladder-over-wave.svg

* Added icons/ladder-over-wave.json

* Rename ladder-over-wave.json to waves-ladder.json

* Rename ladder-over-wave.svg to waves-ladder.svg

* Update icons/waves-ladder.json

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

---------

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

icons/waves-ladder.json

@@ -0,0 +1,22 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "karsa-mistmere"
+  ],
+  "tags": [
+    "swimming",
+    "water",
+    "pool",
+    "lifeguard",
+    "ocean",
+    "🌊",
+    "🏊‍♂️",
+    "🏊‍♀️",
+    "🏊",
+    "🥽"
+  ],
+  "categories": [
+    "sports",
+    "home"
+  ]
+}