Upgrade to newest RN, add Expo SDK, general cleanup.

metro.config.js

@@ -4,5 +4,8 @@ const { getDefaultConfig } = require('expo/metro-config');
 const defaultConfig = getDefaultConfig(__dirname);
 
 defaultConfig.resolver.assetExts.push('cjs');
+// this will be the default in the future, so let's be future-proof
+defaultConfig.resolver.enablePackageExports = true;
+defaultConfig.resolver.unstable_enablePackageExports = true;
 
 module.exports = defaultConfig;

package.json

@@ -30,6 +30,9 @@
       }
     }
   },
+  "overrides": {
+    "@digitalbazaar/http-client": "4.1.0"
+  },
   "dependencies": {
     "@digitalcredentials/cborld": "^4.3.4",
     "@digitalcredentials/did-method-key": "^2.0.3",
@@ -54,6 +57,7 @@
     "big-integer": "^1.6.49",
     "bson": "4.4.1",
     "expo": "~50.0.6",
+    "expo-crypto": "~12.8.0",
     "expo-dev-client": "~3.3.8",
     "expo-secure-store": "~12.8.1",
     "expo-splash-screen": "~0.26.4",
@@ -104,8 +108,7 @@
     "text-encoding": "^0.7.0",
     "util": "^0.10.4",
     "validator": "^13.11.0",
-    "whatwg-fetch": "^3.6.20",
-    "expo-crypto": "~12.8.0"
+    "whatwg-fetch": "^3.6.20"
   },
   "devDependencies": {
     "@react-native/eslint-config": "^0.73.2",

patches/@digitalbazaar+http-client+4.1.0.patch

@@ -0,0 +1,25 @@
+diff --git a/node_modules/@digitalbazaar/http-client/package.json b/node_modules/@digitalbazaar/http-client/package.json
+index 4dd70e5..5a24632 100644
+--- a/node_modules/@digitalbazaar/http-client/package.json
++++ b/node_modules/@digitalbazaar/http-client/package.json
+@@ -5,16 +5,14 @@
+   "license": "BSD-3-Clause",
+   "type": "module",
+   "main": "./dist/cjs/index.cjs",
+-  "exports": {
+-    "require": "./dist/cjs/index.cjs",
+-    "import": "./lib/index.js"
+-  },
+   "browser": {
+     "./lib/agentCompatibility.js": "./lib/agentCompatibility-browser.js",
+     "./tests/utils.cjs": "./tests/utils-browser.cjs"
+   },
+-  "react-native": {
+-    "./lib/agentCompatibility.js": "./lib/agentCompatibility-browser.js"
++  "exports": {
++    "react-native": "./lib/index.js",
++    "require": "./dist/cjs/index.cjs",
++    "import": "./lib/index.js"
+   },
+   "scripts": {
+     "rollup": "rollup -c rollup.config.js",