Improve disc icons metadata/add alternate CD icon (#1307)

* Optimise `disc` alternate icon

* Improve `disc` icons metadata

* Add `disc` alternate icon

icons/disc-2.json

@@ -2,12 +2,19 @@
   "$schema": "../icon.schema.json",
   "tags": [
     "album",
+    "music",
     "vinyl",
     "record",
-    "music"
+    "cd",
+    "dvd",
+    "format",
+    "dj",
+    "spin",
+    "rotate",
+    "rpm"
   ],
   "categories": [
     "devices",
     "multimedia"
   ]
-}
+}

icons/disc-2.svg

@@ -9,7 +9,7 @@
   stroke-linecap="round"
   stroke-linejoin="round"
 >
-  <circle cx="12" cy="12" r="4" />
   <circle cx="12" cy="12" r="10" />
-  <line x1="12" y1="12" x2="12" y2="12.01"/>
+  <circle cx="12" cy="12" r="4" />
+  <path d="M12 12h.01" />
 </svg>

icons/disc-3.json

@@ -0,0 +1,20 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "album",
+    "music",
+    "vinyl",
+    "record",
+    "cd",
+    "dvd",
+    "format",
+    "dj",
+    "spin",
+    "rotate",
+    "rpm"
+  ],
+  "categories": [
+    "devices",
+    "multimedia"
+  ]
+}

icons/disc-3.svg

@@ -0,0 +1,16 @@
+<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"
+>
+  <circle cx="12" cy="12" r="10" />
+  <path d="M6 12c0-1.7.7-3.2 1.8-4.2" />
+  <circle cx="12" cy="12" r="2" />
+  <path d="M18 12c0 1.7-.7 3.2-1.8 4.2" />
+</svg>

icons/disc.json

@@ -2,9 +2,14 @@
   "$schema": "../icon.schema.json",
   "tags": [
     "album",
+    "music",
     "cd",
     "dvd",
-    "music"
+    "format",
+    "dj",
+    "spin",
+    "rotate",
+    "rpm"
   ],
   "categories": [
     "devices",