Add eslint rule and fix as many issues as possible

backend/src/models/secret.ts

@@ -1,10 +1,10 @@
-import { Schema, model, Types } from "mongoose";
+import { Schema, Types, model } from "mongoose";
 import {
-  SECRET_SHARED,
-  SECRET_PERSONAL,
   ALGORITHM_AES_256_GCM,
-  ENCODING_SCHEME_UTF8,
   ENCODING_SCHEME_BASE64,
+  ENCODING_SCHEME_UTF8,
+  SECRET_PERSONAL,
+  SECRET_SHARED,
 } from "../variables";
 
 export interface ISecret {