feat: add changelogs, update old changelogs, update build scripts

lib/routes/typed/top_level/changelog_route.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:paperless_mobile/features/changelogs/view/changelog_dialog.dart';
+import 'package:paperless_mobile/routes/navigation_keys.dart';
+import 'package:paperless_mobile/routes/utils/dialog_page.dart';
+
+part 'changelog_route.g.dart';
+
+@TypedGoRoute<ChangelogRoute>(path: '/changelogs)')
+class ChangelogRoute extends GoRouteData {
+  static final $parentNavigatorKey = rootNavigatorKey;
+  @override
+  Page<void> buildPage(BuildContext context, GoRouterState state) {
+    return DialogPage(
+      builder: (context) => const ChangelogDialog(),
+    );
+  }
+}

lib/routes/utils/dialog_page.dart

@@ -0,0 +1,40 @@
+import 'package:flutter/material.dart';
+
+class DialogPage<T> extends Page<T> {
+  final Offset? anchorPoint;
+  final Color? barrierColor;
+  final bool barrierDismissible;
+  final String? barrierLabel;
+  final bool useSafeArea;
+  final CapturedThemes? themes;
+  final WidgetBuilder builder;
+
+  const DialogPage({
+    required this.builder,
+    this.anchorPoint,
+    this.barrierColor = Colors.black38,
+    this.barrierDismissible = true,
+    this.barrierLabel,
+    this.useSafeArea = true,
+    this.themes,
+    super.key,
+    super.name,
+    super.arguments,
+    super.restorationId,
+  });
+
+  @override
+  Route<T> createRoute(BuildContext context) => DialogRoute<T>(
+        context: context,
+        settings: this,
+        builder: (context) => Dialog(
+          child: builder(context),
+        ),
+        anchorPoint: anchorPoint,
+        barrierColor: barrierColor,
+        barrierDismissible: barrierDismissible,
+        barrierLabel: barrierLabel,
+        useSafeArea: useSafeArea,
+        themes: themes,
+      );
+}