feat(icons): Add cloud-sync and cloud-backup (#3466)

* Add icons

* Update cloud-backup.json

* Update cloud-sync.json

* Format code

---------

Co-authored-by: Karsa <contact@karsa.org>

icons/cloud-backup.json

@@ -0,0 +1,33 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "ericfennis",
+    "jguddas",
+    "danielbayley",
+    "karsa-mistmere"
+  ],
+  "tags": [
+    "storage",
+    "memory",
+    "bytes",
+    "servers",
+    "backup",
+    "timemachine",
+    "rotate",
+    "synchronize",
+    "synchronise",
+    "refresh",
+    "reconnect",
+    "transfer",
+    "data",
+    "security",
+    "upload",
+    "save",
+    "remote",
+    "safety"
+  ],
+  "categories": [
+    "arrows",
+    "files"
+  ]
+}

icons/cloud-backup.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"
+>
+  <path d="M21 15.251A4.5 4.5 0 0 0 17.5 8h-1.79A7 7 0 1 0 3 13.607" />
+  <path d="M7 11v4h4" />
+  <path d="M8 19a5 5 0 0 0 9-3 4.5 4.5 0 0 0-4.5-4.5 4.82 4.82 0 0 0-3.41 1.41L7 15" />
+</svg>

icons/cloud-sync.json

@@ -0,0 +1,27 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "colebemis",
+    "csandman",
+    "ericfennis",
+    "karsa-mistmere"
+  ],
+  "tags": [
+    "synchronize",
+    "synchronise",
+    "refresh",
+    "reconnect",
+    "transfer",
+    "backup",
+    "storage",
+    "upload",
+    "download",
+    "connection",
+    "network",
+    "data"
+  ],
+  "categories": [
+    "arrows",
+    "files"
+  ]
+}

icons/cloud-sync.svg

@@ -0,0 +1,17 @@
+<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="m17 18-1.535 1.605a5 5 0 0 1-8-1.5" />
+  <path d="M17 22v-4h-4" />
+  <path d="M20.996 15.251A4.5 4.5 0 0 0 17.495 8h-1.79a7 7 0 1 0-12.709 5.607" />
+  <path d="M7 10v4h4" />
+  <path d="m7 14 1.535-1.605a5 5 0 0 1 8 1.5" />
+</svg>