feat(sdk): adds ox for hex and bytes utilities

Author: gregfromstl

.changeset/nice-gifts-argue.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Adds ox for internal utilities

packages/thirdweb/.size-limit.json

@@ -2,18 +2,19 @@
   {
     "name": "thirdweb (esm)",
     "path": "./dist/esm/exports/thirdweb.js",
-    "limit": "45 kB",
+    "limit": "50 kB",
     "import": "*"
   },
   {
     "name": "thirdweb (cjs)",
     "path": "./dist/cjs/exports/thirdweb.js",
-    "limit": "110 kB"
+    "limit": "250 kB",
+    "import": "*"
   },
   {
     "name": "thirdweb (minimal + tree-shaking)",
     "path": "./dist/esm/exports/thirdweb.js",
-    "limit": "5 kB",
+    "limit": "7.5 kB",
     "import": "{ createThirdwebClient, getRpcClient, defineChain }"
   },
   {