Optimise/add power[-circle/-square] icons (#1353)

* Add `power-circle` icon

* Optimise `power` icon

* Improve `power` icon metadata

* Add `power-square` icon

---------

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

icons/power-circle.json

@@ -0,0 +1,23 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "danielbayley"
+  ],
+  "tags": [
+    "on",
+    "off",
+    "device",
+    "switch",
+    "toggle",
+    "binary",
+    "boolean",
+    "reboot",
+    "restart",
+    "button",
+    "keyboard",
+    "troubleshoot"
+  ],
+  "categories": [
+    "connectivity"
+  ]
+}

icons/power-circle.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"
+>
+  <circle cx="12" cy="12" r="10" />
+  <path d="M12 12V6" />
+  <path d="M8 7.5A6.1 6.1 0 0 0 12 18a6 6 0 0 0 4-10.5" />
+</svg>

icons/power-square.json

@@ -0,0 +1,23 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "danielbayley"
+  ],
+  "tags": [
+    "on",
+    "off",
+    "device",
+    "switch",
+    "toggle",
+    "binary",
+    "boolean",
+    "reboot",
+    "restart",
+    "button",
+    "keyboard",
+    "troubleshoot"
+  ],
+  "categories": [
+    "connectivity"
+  ]
+}

icons/power-square.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"
+>
+  <rect width="18" height="18" x="3" y="3" rx="2" />
+  <path d="M12 7v5" />
+  <path d="M8 9a5.14 5.14 0 0 0 4 8 4.95 4.95 0 0 0 4-8" />
+</svg>

icons/power.json

@@ -10,8 +10,14 @@
     "off",
     "device",
     "switch",
+    "toggle",
+    "binary",
+    "boolean",
     "reboot",
-    "restart"
+    "restart",
+    "button",
+    "keyboard",
+    "troubleshoot"
   ],
   "categories": [
     "connectivity"

icons/power.svg

@@ -9,6 +9,6 @@
   stroke-linecap="round"
   stroke-linejoin="round"
 >
-  <path d="M18.36 6.64a9 9 0 1 1-12.73 0" />
-  <line x1="12" x2="12" y1="2" y2="12" />
+  <path d="M12 2v10" />
+  <path d="M18.4 6.6a9 9 0 1 1-12.77.04" />
 </svg>