refact: error naming changes

Author: regisrex

errors/errorHandler.ts

@@ -1,43 +1,43 @@
 export class MissingParamError extends Error {
     constructor(param : string) {
         super(`Missing param  : ${param}`)
-        this.name  = "Missing Parameter Error"
+        this.name  = "MissingParamError"
     }
 }
 
 export class CollectionNotFoundError extends Error {
     constructor(collection : string) {
         super(`Collection  ${collection} was not found in database`)
-        this.name  = "Collection Not Found"
+        this.name  = "CollectionNotFoundError"
     }
 }
 
 
 export class DatabaseError extends Error {
     constructor(err : string) {
         super(err)
-        this.name  = "Database Error"
+        this.name  = "DatabaseError"
     }
 }
 
 export class NotFoundError extends Error {
     constructor(err : string) {
         super(err)
-        this.name = "Not Found Error"
+        this.name = "NotFoundError"
     }
 }
 
 export class DuplicationError extends  Error {
     constructor(err? : string){
         super(err || "Duplication error occured")
-        this.name =  "Duplication error"
+        this.name =  "DuplicationError"
     }
 }
 
 export class CreateFileError extends Error {
     constructor(err? : string){
         super(err || "Failed to create database.json")
-        this.name =  "CreateFile Error"
+        this.name =  "CreateFileError"
     }
 
 }