Use java.date to parse dates (#377)

* Use java.date to parse dates

* Enable core library desugaring

app/src/main/java/apps/amine/bou/readerforselfoss/HomeActivity.kt

@@ -340,20 +340,16 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
     private fun getApiMajorVersion() {
         api.apiVersion.enqueue(object : Callback<ApiVersion> {
             override fun onFailure(call: Call<ApiVersion>, t: Throwable) {
-                if (apiVersionMajor >= 4) {
-                    Config.dateTimeFormatter = "yyyy-MM-dd'T'HH:mm:ssXXX"
-                }
+                Config.apiVersion = apiVersionMajor
             }
 
             override fun onResponse(call: Call<ApiVersion>, response: Response<ApiVersion>) {
                 if(response.body() != null) {
                     val version = response.body() as ApiVersion
                     apiVersionMajor = version.getApiMajorVersion()
-                    sharedPref.edit().putInt("apiVersionMajor", apiVersionMajor).commit()
+                    sharedPref.edit().putInt("apiVersionMajor", apiVersionMajor).apply()
 
-                    if (apiVersionMajor >= 4) {
-                        Config.dateTimeFormatter = "yyyy-MM-dd'T'HH:mm:ssXXX"
-                    }
+                    Config.apiVersion = apiVersionMajor
                 }
             }
         })