Use integer for contributor ID everywhere

closes #145

app/utils/process-contribution-data.js

@@ -8,9 +8,8 @@ export default function processContributionData(data) {
   }
 
   const otherProperties = [
-    'id', 'contributorId', 'amount', 'vetoed',
-    'ipfsHash', 'kind', 'description', 'details',
-    'url', 'date', 'time', 'pendingTx'
+    'id', 'contributorId', 'amount', 'vetoed', 'ipfsHash', 'kind',
+    'description', 'details', 'url', 'date', 'time', 'pendingTx'
   ];
 
   otherProperties.forEach(prop => {

app/utils/process-contributor-data.js

@@ -1,13 +1,12 @@
 export default function processContributorData(data) {
   const processed = {
-    id: data.id.toString(),
     balance: data.balanceInt,
     totalKreditsEarned: data.totalKreditsEarned,
     contributionsCount: data.contributionsCount?.toNumber()
   }
 
   const otherProperties = [
-    'account', 'accounts', 'ipfsHash', 'isCore', 'kind', 'name', 'url',
+    'id', 'account', 'accounts', 'ipfsHash', 'isCore', 'kind', 'name', 'url',
     'github_username', 'github_uid', 'wiki_username', 'zoom_display_name'
   ];