refactor: update error codes and messages

References: https://outsystemsrd.atlassian.net/browse/RMET-3037

src/main/kotlin/com/outsystems/plugins/barcode/model/OSBARCError.kt

@@ -4,10 +4,10 @@ package com.outsystems.plugins.barcode.model
  * Enum class that holds the library's errors.
  */
 enum class OSBARCError(val code: Int, val description: String) {
-    CAMERA_PERMISSION_DENIED_ERROR(7, "Scanning cancelled due to missing camera permissions."),
-    INVALID_PARAMETERS_ERROR(10, "Scanning parameters are invalid."),
-    SCAN_CANCELLED_ERROR(6, "Scanning cancelled."),
     SCANNING_GENERAL_ERROR(4, "Error while trying to scan code."),
-    ZXING_LIBRARY_ERROR(11, "There was an error scanning the barcode with ZXing."),
-    MLKIT_LIBRARY_ERROR(12, "There was an error scanning the barcode with ML Kit.")
+    SCAN_CANCELLED_ERROR(6, "Couldn't scan because the process was cancelled."),
+    CAMERA_PERMISSION_DENIED_ERROR(7, "Couldn't scan because camera access wasn't provided. Check your camera permissions and try again."),
+    INVALID_PARAMETERS_ERROR(8, "Scanning parameters are invalid."),
+    ZXING_LIBRARY_ERROR(9, "There was an error scanning the barcode with ZXing."),
+    MLKIT_LIBRARY_ERROR(10, "There was an error scanning the barcode with ML Kit.")
 }

src/test/kotlin/com/outsystems/plugins/barcode/ScanCodeTests.kt

@@ -42,6 +42,7 @@ class ScanCodeTests {
         private const val SCAN_REQUEST_CODE = 112
         private const val INVALID_REQUEST_CODE = 113
         private const val INVALID_RESULT_CODE = 9
+        private const val GENERAL_ERROR_CODE = 4
         private const val SCAN_RESULT = "scanResult"
         private const val RESULT_CODE = "myCode"
     }
@@ -168,7 +169,7 @@ class ScanCodeTests {
         Mockito.doReturn(null).`when`(mockBundle).getString(SCAN_RESULT)
 
         val barcodeController = OSBARCController()
-        barcodeController.handleActivityResult(SCAN_REQUEST_CODE, INVALID_RESULT_CODE, mockIntent,
+        barcodeController.handleActivityResult(SCAN_REQUEST_CODE, GENERAL_ERROR_CODE, mockIntent,
             {
                 fail()
             },