refactor: clean up imports and variable names

.gitignore

@@ -1 +1,2 @@
-.DS_Store
+.DS_Store
+.vscode

backend/src/main.cpp

@@ -1,8 +1,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include <iostream>
-
 #include "crow.h"
 #include "database.hpp"
 #include "password.hpp"
@@ -13,8 +11,8 @@ int main()
     db.execute("CREATE TABLE passwords (password TEXT);");
 
     // generate and insert the passwords into the database
-    std::unordered_set<std::string> passwordSet = password::generatePasswords(10, 20);
-    for (const auto &password : passwordSet)
+    std::unordered_set<std::string> password_set = password::generatePasswords(100, 20);
+    for (const auto &password : password_set)
     {
         db.execute("INSERT INTO passwords (password) VALUES ('" + password + "');");
     }

backend/src/password.hpp

@@ -10,8 +10,8 @@ namespace password
      * @brief Returns a set of passwords, where each password contains at least one lowercase 
      * letter, at least one uppercase letter, at least one digit, and at least special character.
      * 
-     * @param numPasswords The number of passwords to generate.
-     * @param maxChars The maximum number of characters for a password.
+     * @param num_passwords The number of passwords to generate.
+     * @param max_chars The maximum number of characters for a password.
      * @return std::unordered_set<std::string> The passwords generated. 
      */
     std::unordered_set<std::string> generatePasswords(int num_passwords, int max_chars);

backend/tests/testPasswordGenerator.cpp

@@ -16,11 +16,11 @@ bool hasSymbol(const std::string &password)
 
 TEST_CASE("Test generatePassword creates valid passwords")
 {
-    std::unordered_set<std::string> passwordSet = password::generatePasswords(3, 12);
+    std::unordered_set<std::string> password_set = password::generatePasswords(3, 12);
     // function generated 3 passwords
-    CHECK(passwordSet.size() == 3);
+    CHECK(password_set.size() == 3);
 
-    for (const auto &password : passwordSet)
+    for (const auto &password : password_set)
     {   
         CHECK(password.length() >= 10);
         CHECK(hasLettersAndDigit(password));