Sort out loader/cursor icons (#1331)

* Add `loader-pinwheel` icon

* Optimise `loader` icon

* Improve `loader` metadata

* Add `loader-circle-big` variant

* Rename `loader-2` to `loader-circle`

* Improve `more-horizontal` metadata

* Add `mouse-pointer-ban` icon

* Improve `mouse-pointer` icons metadata

* Improve metadata

* Revert rename of `loader-2` to `loader-circle`

* Revert "Improve `more-horizontal` metadata"

This reverts commit 41fa676b15.

* Formatting

* Format pinwheel and remove loader-circle-big

---------

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

icons/mouse-pointer.json

@@ -5,9 +5,8 @@
     "ericfennis"
   ],
   "tags": [
-    "arrow",
-    "cursor",
-    "click"
+    "click",
+    "select"
   ],
   "categories": [
     "arrows",