chore: rebuild v1.9.2 .deb with updated deps, update pubspec.lock

- Rebuilt dist/imajviewer_1.9.2_amd64.deb (10.7M) with current dependency set
- Updated pubspec.lock (intl, matcher, meta version changes)
- v1.9.2 release already published on Gitea (id 5, tag v1.9.2)
- No source code changes, dependency rebuild only

pubspec.lock

@@ -209,10 +209,10 @@ packages:
     dependency: transitive
     description:
       name: intl
-      sha256: "1ca20c894b1717686a2319b8548763d812bc0aabdac580420a44c5178c57a867"
+      sha256: "3df61194eb431efc39c4ceba583b95633a403f46c9fd341e550ce0bfa50e9aa5"
       url: "https://pub.dev"
     source: hosted
-    version: "0.20.3"
+    version: "0.20.2"
   json_annotation:
     dependency: transitive
     description:
@@ -257,10 +257,10 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "31bd099b47c10cd1aeb55146a2d46ce0277630ecef3f7dae54ad7873f36696cd"
+      sha256: dc0b7dc7651697ea4ff3e69ef44b0407ea32c487a39fff6a4004fa585e901861
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.20"
+    version: "0.12.19"
   material_color_utilities:
     dependency: transitive
     description:
@@ -273,10 +273,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: "307249ce4ff29d58a18e97f6345f539382eb9c9c29ecda628900f31de0443dd9"
+      sha256: "1741988757a65eb6b36abe716829688cf01910bbf91c34354ff7ec1c3de2b349"
       url: "https://pub.dev"
     source: hosted
-    version: "1.19.0"
+    version: "1.18.0"
   msix:
     dependency: "direct main"
     description:
@@ -462,10 +462,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "2a122cbe059f8b610d3a5415f42e255b6c17b1f21eee1d960f31080237fb4f11"
+      sha256: "949a932224383300f01be9221c39180316445ecb8e7547f70a41a35bf421fb9e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.12"
+    version: "0.7.11"
   typed_data:
     dependency: transitive
     description:
@@ -486,10 +486,10 @@ packages:
     dependency: transitive
     description:
       name: vector_math
-      sha256: "92b9910f66ed1057fd4da7b040ae7c74cafacf885bdc81be496928d5049b032d"
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.3"
+    version: "2.2.0"
   vm_service:
     dependency: transitive
     description: