fix: add account data update permission + handle async saveAccountData

manifest.konnector

@@ -46,10 +46,7 @@
       "type": "io.cozy.files"
     },
     "accounts": {
-      "type": "io.cozy.accounts",
-      "verbs": [
-        "GET"
-      ]
+      "type": "io.cozy.accounts"
     }
   },
   "developer": {

src/index.js

@@ -165,7 +165,7 @@ async function getList(params, urlPart, subItem, splitPart) {
 /* Function that retrieve all new declaration not sync before */
 async function getAllDeclaration(params, declarationList) {
   let accData = this.getAccountData()
-  let exist = Object.keys(accData).length > 0
+  let exist = Object.keys(accData).includes('lastSaved')
   let bills = []
   let lastPeriod = declarationList.length - 1
   if (exist) {
@@ -177,7 +177,7 @@ async function getAllDeclaration(params, declarationList) {
       const bill = await getDeclaration(params, declarationList[i])
       bills.push(bill)
       accData.lastSaved = declarationList[i]
-      this.saveAccountData(accData, { merge: false })
+      await this.saveAccountData(accData, { merge: false })
     } catch (error) {
       log('error', error)
       break