refactor: remove unused imports and simplify onClickListeners in Main…

…Activity.kt and EncryptionActivity.kt

The unused imports in both MainActivity.kt and EncryptionActivity.kt have been removed to improve code readability. The onClickListeners in MainActivity.kt and EncryptionActivity.kt have been simplified by removing unnecessary parentheses.

app/src/main/java/com/example/shandilya/encrypto/EncryptionActivity.kt

@@ -23,7 +23,6 @@ import android.widget.TextView
 import androidx.appcompat.app.AlertDialog
 import java.security.Key
 import android.util.Base64
-import android.util.Log
 import android.widget.Toast
 import java.io.File
 import java.io.FileOutputStream

app/src/main/java/com/example/shandilya/encrypto/MainActivity.kt

@@ -1,16 +1,10 @@
 package com.example.shandilya.encrypto
 
-import android.Manifest
-import android.content.Context
+
 import android.content.Intent
-import android.content.pm.PackageManager
-import android.os.Build
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.widget.Button
-import android.widget.Toast
-import androidx.core.app.ActivityCompat
-import androidx.core.content.ContextCompat
 
 class MainActivity : AppCompatActivity() {
 
@@ -22,12 +16,12 @@ class MainActivity : AppCompatActivity() {
         val encrypt = findViewById<Button>(R.id.encrypt)
         val decrypt = findViewById<Button>(R.id.decrypt)
 
-        encrypt.setOnClickListener(){
+        encrypt.setOnClickListener{
             intent = Intent(this,EncryptionActivity::class.java)
             startActivity(intent)
         }
 
-        decrypt.setOnClickListener(){
+        decrypt.setOnClickListener{
             intent = Intent(this,DecryptionActivity::class.java)
             startActivity(intent)
         }