build: (deps): bump matrix from 4.1.0 to 5.0.0

Bumps [matrix](https://github.com/famedly/matrix-dart-sdk) from 4.1.0 to 5.0.0.
- [Release notes](https://github.com/famedly/matrix-dart-sdk/releases)
- [Changelog](https://github.com/famedly/matrix-dart-sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/famedly/matrix-dart-sdk/compare/v4.1.0...v5.0.0)

---
updated-dependencies:
- dependency-name: matrix
  dependency-version: 5.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

lib/pages/chat/events/image_bubble.dart

@@ -44,10 +44,9 @@ class ImageBubble extends StatelessWidget {
   });
 
   Widget _buildPlaceholder(BuildContext context) {
-    final String blurHashString =
-        event.infoMap['xyz.amorgan.blurhash'] is String
-        ? event.infoMap['xyz.amorgan.blurhash']
-        : 'LEHV6nWB2yk8pyo0adR*.7kCMdnj';
+    final blurHashString =
+        event.infoMap.tryGet<String>('xyz.amorgan.blurhash') ??
+        'LEHV6nWB2yk8pyo0adR*.7kCMdnj';
     return SizedBox(
       width: width,
       height: height,

lib/utils/matrix_sdk_extensions/event_extension.dart

@@ -41,11 +41,11 @@ extension LocalizedBody on Event {
 
   bool get isAttachmentSmallEnough =>
       infoMap['size'] is int &&
-      infoMap['size'] < room.client.database.maxFileSize;
+      (infoMap['size'] as int) < room.client.database.maxFileSize;
 
   bool get isThumbnailSmallEnough =>
       thumbnailInfoMap['size'] is int &&
-      thumbnailInfoMap['size'] < room.client.database.maxFileSize;
+      (thumbnailInfoMap['size'] as int) < room.client.database.maxFileSize;
 
   bool get showThumbnail =>
       [

pubspec.lock

@@ -1088,10 +1088,10 @@ packages:
     dependency: "direct main"
     description:
       name: matrix
-      sha256: fb116ee89f6871441f22f76a988db15cfcfb6dfac97e3e2d654c240080015707
+      sha256: "8cf9f502bf67e996b0503c8597c3b789c955f8b2331ecd4433658c732dc2c13f"
       url: "https://pub.dev"
     source: hosted
-    version: "4.1.0"
+    version: "5.0.0"
   meta:
     dependency: transitive
     description:

pubspec.yaml

@@ -53,7 +53,7 @@ dependencies:
   just_audio: ^0.10.5
   latlong2: ^0.9.1
   linkify: ^5.0.0
-  matrix: ^4.1.0
+  matrix: ^5.0.0
   mime: ^2.0.0
   native_imaging: ^0.2.0
   opus_caf_converter_dart: ^1.0.1