[CHORE] pass linter

lib/config/strings.dart

 // Frequently used strings are stored here
 // No hardcoding string view files. Store here.
 
-final String DEV_BASE_URL = "poipole.herokuapp.com";
-final String BASE_URL = "poipole.herokuapp.com";
-String KEY = "";
-String CSRF = "";
-String SESSION_ID = "";
+final String devBaseUrl = "poipole.herokuapp.com";
+final String baseUrl = "poipole.herokuapp.com";
+String key = "";
+String csrf = "";
+String sessionId= "";
 
-setKey(String key) {
-  KEY = key;
+setKey(String newKey) {
+  key = newKey;
 }
 
-setSessionId(String sessionId) {
-  SESSION_ID = sessionId;
+setSessionId(String newSessionId) {
+  sessionId = newSessionId;
 }
\ No newline at end of file

lib/flavor/flavor.dart

@@ -7,9 +7,9 @@ class ApiFlavor {
 
   static String getBaseUrl() {
     if (ApiFlavor.flavor == BuildFlavor.development.toString()) {
-      return DEV_BASE_URL;
+      return devBaseUrl;
     } else {
-      return BASE_URL;
+      return baseUrl;
     }
   }
 

lib/main.dart

 import 'package:flutter/material.dart';
-import 'package:ppl_disabilitas/config/styles.dart';
 import 'package:ppl_disabilitas/page/dashboard/dashboard.dart';
 
 import 'flavor/flavor.dart';

lib/page/dashboard/dashboard.dart

@@ -25,9 +25,7 @@ class DashboardState extends State<Dashboard> {
       currentLocation = cLoc;
       updatePinOnMap();
     });
-    // set custom marker pins
     setSourceAndDestinationIcons();
-    // set the initial location
     setInitialLocation();
   }
 
@@ -88,19 +86,13 @@ class DashboardState extends State<Dashboard> {
   }
 
   void updatePinOnMap() async {
-    // create a new CameraPosition instance
-    // every time the location changes, so the camera
-    // follows the pin as it moves with an animation
     CameraPosition cPosition = CameraPosition(
       zoom: cameraZoom,
       target: LatLng(currentLocation.latitude, currentLocation.longitude),
     );
     final GoogleMapController controller = await _controller.future;
     controller.animateCamera(CameraUpdate.newCameraPosition(cPosition));
-    // do this inside the setState() so Flutter gets notified
-    // that a widget update is due
     setState(() {
-      // updated position
       var pinPosition =
           LatLng(currentLocation.latitude, currentLocation.longitude);
       _markers.removeWhere((m) => m.markerId.value == 'currentLocationPin');
@@ -112,8 +104,6 @@ class DashboardState extends State<Dashboard> {
   }
 
   void setInitialLocation() async {
-    // set the initial location by pulling the user's
-    // current location from the location's getLocation()
     currentLocation = await location.getLocation();
   }
 }

test/widget_test.dart

-import 'dart:async';
-
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:google_maps_flutter/google_maps_flutter.dart';