HttpClient: use the http client builder when using etesync

If we don't use the http client builder we don't get cert4droid hooked
which means we won't correctly support self-signed certificates.

app/src/main/java/com/etesync/syncadapter/HttpClient.kt

@@ -68,7 +68,6 @@ class HttpClient private constructor(
     ) {
         private var certManager: CustomCertManager? = null
         private var certificateAlias: String? = null
-        private var cache: Cache? = null
 
         private val orig = sharedClient.newBuilder()
 

app/src/main/java/com/etesync/syncadapter/ui/ChangeEncryptionPasswordActivity.kt

@@ -69,7 +69,7 @@ open class ChangeEncryptionPasswordActivity : BaseActivity() {
         }
 
         doAsync {
-            val httpClient = HttpClient.sharedClient
+            val httpClient = HttpClient.Builder(this@ChangeEncryptionPasswordActivity).setForeground(true).build().okHttpClient
 
             try {
                 Logger.log.info("Loging in with old password")

app/src/main/java/com/etesync/syncadapter/ui/etebase/CollectionActivity.kt

@@ -90,7 +90,8 @@ class AccountViewModel : ViewModel() {
         doAsync {
             val settings = AccountSettings(context, account)
             val etebaseLocalCache = EtebaseLocalCache.getInstance(context, account.name)
-            val etebase = EtebaseLocalCache.getEtebase(context, HttpClient.sharedClient, settings)
+            val httpClient = HttpClient.Builder(context).setForeground(true).build().okHttpClient
+            val etebase = EtebaseLocalCache.getEtebase(context, httpClient, settings)
             val colMgr = etebase.collectionManager
             uiThread {
                 holder.value = AccountHolder(