Removed unused files, code cleanup

lib/extensions/date_time_extensions.dart

@@ -1,5 +0,0 @@
-extension DateComparisons on DateTime {
-  bool isEqualToIgnoringDate(DateTime other) {
-    return day == other.day && month == other.month && year == other.year;
-  }
-}

lib/extensions/hydrated_storage_extension.dart

@@ -1,6 +1,5 @@
 import 'package:hydrated_bloc/hydrated_bloc.dart';
 import 'package:paperless_mobile/features/login/bloc/authentication_state.dart';
-import 'package:paperless_mobile/features/settings/bloc/application_settings_cubit.dart';
 import 'package:paperless_mobile/features/settings/model/application_settings_state.dart';
 
 extension AddressableHydratedStorage on Storage {

lib/extensions/security_context_extension.dart

@@ -1,22 +0,0 @@
-import 'dart:io';
-
-import 'package:paperless_mobile/features/login/model/client_certificate.dart';
-
-extension ClientCertificateHandlingSecurityContext on SecurityContext {
-  SecurityContext withClientCertificate(ClientCertificate? clientCertificate) {
-    if (clientCertificate == null) return this;
-    return this
-      ..usePrivateKeyBytes(
-        clientCertificate.bytes,
-        password: clientCertificate.passphrase,
-      )
-      ..useCertificateChainBytes(
-        clientCertificate.bytes,
-        password: clientCertificate.passphrase,
-      )
-      ..setTrustedCertificatesBytes(
-        clientCertificate.bytes,
-        password: clientCertificate.passphrase,
-      );
-  }
-}

lib/extensions/string_extensions.dart

@@ -1,7 +0,0 @@
-extension SizeLimitedString on String {
-  String withLengthLimitedTo(int length, [String overflow = "..."]) {
-    return this.length > length
-        ? '${substring(0, length - overflow.length)}$overflow'
-        : this;
-  }
-}