misc: add news entries for April modules

Add detailed news entries for the following modules:
- programs.onedrive (cloud sync) - Linux-only
- programs.rmpc (MPD client)
- programs.kickoff (Wayland launcher) - Linux-only
- programs.mpvpaper (video wallpaper) - Linux-only

modules/misc/news/2025-04-26_03-16-59.nix

@@ -0,0 +1,15 @@
+{ pkgs, ... }:
+
+{
+  time = "2025-04-26T03:16:59+00:00";
+  condition = pkgs.stdenv.hostPlatform.isLinux;
+  message = ''
+    A new module is available: 'programs.onedrive'.
+
+    OneDrive is Microsoft's cloud storage service. This module integrates
+    the open source OneDrive client for Linux which provides synchronization
+    capabilities between your local file system and OneDrive. The module allows
+    configuring multiple OneDrive accounts, sync options, and notification
+    preferences.
+  '';
+}

modules/misc/news/2025-04-27_03-17-07.nix

@@ -0,0 +1,12 @@
+{
+  time = "2025-04-27T03:17:07+00:00";
+  condition = true;
+  message = ''
+    A new module is available: 'programs.rmpc'.
+
+    RMPC (Remote MPD Client) is a minimalist TUI client for the Music Player Daemon.
+    It provides a simple interface to control MPD with features like playlist
+    manipulation, library browsing, and song searching. The module allows you to
+    customize its behavior, keybindings, and connection settings.
+  '';
+}

modules/misc/news/2025-04-28_03-17-15.nix

@@ -0,0 +1,15 @@
+{ pkgs, ... }:
+
+{
+  time = "2025-04-28T03:17:15+00:00";
+  condition = pkgs.stdenv.hostPlatform.isLinux;
+  message = ''
+    A new module is available: 'programs.kickoff'.
+
+    Kickoff is a minimalist application launcher for Wayland designed to be fast
+    and lightweight. It features a clean interface that appears at the center of
+    the screen, fuzzy search functionality, and customizable appearance through
+    theming. The module allows configuration of hotkeys, theme settings, and
+    launch options.
+  '';
+}

modules/misc/news/2025-04-28_03-17-23.nix

@@ -0,0 +1,15 @@
+{ pkgs, ... }:
+
+{
+  time = "2025-04-28T03:17:23+00:00";
+  condition = pkgs.stdenv.hostPlatform.isLinux;
+  message = ''
+    A new module is available: 'programs.mpvpaper'.
+
+    mpvpaper is a utility that allows you to use videos or complex animations
+    as your desktop wallpaper using mpv. It supports various video formats and
+    provides configuration options like framerate limits and scaling methods.
+    The module allows you to specify target outputs, video options, and
+    additional mpv arguments.
+  '';
+}