Add eth_getProof to safe methods (#10070)

`eth_getProof` is an unpermissioned, read-only RPC method for getting account-related Merkle proofs, specified here: https://eips.ethereum.org/EIPS/eip-1186

It's been supported by major Ethereum clients, and Infura, for some time. By adding it to the safe methods list, we enable this method for our users.

app/scripts/controllers/permissions/enums.js

@@ -39,15 +39,11 @@ export const LOG_METHOD_TYPES = {
 export const LOG_LIMIT = 100
 
 export const SAFE_METHODS = [
-  'web3_sha3',
-  'web3_clientVersion',
-  'net_listening',
-  'net_peerCount',
-  'net_version',
   'eth_blockNumber',
   'eth_call',
   'eth_chainId',
   'eth_coinbase',
+  'eth_decrypt',
   'eth_estimateGas',
   'eth_gasPrice',
   'eth_getBalance',
@@ -56,9 +52,11 @@ export const SAFE_METHODS = [
   'eth_getBlockTransactionCountByHash',
   'eth_getBlockTransactionCountByNumber',
   'eth_getCode',
+  'eth_getEncryptionPublicKey',
   'eth_getFilterChanges',
   'eth_getFilterLogs',
   'eth_getLogs',
+  'eth_getProof',
   'eth_getStorageAt',
   'eth_getTransactionByBlockHashAndIndex',
   'eth_getTransactionByBlockNumberAndIndex',
@@ -79,8 +77,6 @@ export const SAFE_METHODS = [
   'eth_sendRawTransaction',
   'eth_sendTransaction',
   'eth_sign',
-  'personal_sign',
-  'personal_ecRecover',
   'eth_signTypedData',
   'eth_signTypedData_v1',
   'eth_signTypedData_v3',
@@ -89,9 +85,14 @@ export const SAFE_METHODS = [
   'eth_submitWork',
   'eth_syncing',
   'eth_uninstallFilter',
-  'eth_getEncryptionPublicKey',
-  'eth_decrypt',
+  'metamask_getProviderState',
   'metamask_watchAsset',
+  'net_listening',
+  'net_peerCount',
+  'net_version',
+  'personal_ecRecover',
+  'personal_sign',
   'wallet_watchAsset',
-  'metamask_getProviderState',
+  'web3_clientVersion',
+  'web3_sha3',
 ]