Add `pocket-knife` icon (#1140)

* Add `pocket-knife` icon

* Update icons/pocket-knife.svg

Co-authored-by: Jakob Guddas <[e-mail]>

* Update icons/pocket-knife.svg

Co-authored-by: Jakob Guddas <[e-mail]>

* Refine `pocket-knife` icon

* Preview alternate `pocket knife` icon

* Refine `pocket-knife` icon

* Rename `pocket-knife-2` to `pocket-knife`

* Update icons/pocket-knife.svg

Co-authored-by: Karsa <[e-mail]>

* Improve `pocket-knife` twizzle/swoosh

---------

Co-authored-by: Jakob Guddas <[e-mail]>
Co-authored-by: Karsa <[e-mail]>

icons/pocket-knife.json

···
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "swiss army knife",
+    "penknife",
+    "multi-tool",
+    "multitask",
+    "blade",
+    "cutter",
+    "gadget",
+    "corkscrew"
+  ],
+  "categories": [
+    "tools"
+  ]
+}

icons/pocket-knife.svg

···
+<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"
+>
+  <path d="M3 2v1c0 1 2 1 2 2S3 6 3 7s2 1 2 2-2 1-2 2 2 1 2 2" />
+  <path d="M18 6h.01" />
+  <path d="M6 18h.01" />
+  <path d="M20.83 8.83a4 4 0 0 0-5.66-5.66l-12 12a4 4 0 1 0 5.66 5.66Z" />
+  <path d="M18 11.66V22a4 4 0 0 0 4-4V6" />
+</svg>