config: system setup and CS2 training infrastructure optimization

- Add Nextcloud DSA-Aufnahmen bookmark to GTK file picker
- Configure Logitech G502 mouse with flat acceleration profile in Hyprland
- Update wallpapers to AI-generated witch autumn and rose pine themes
- Reorganize and expand CS2 autoexec.cfg:
  * Add radar size toggle alias and train server quick-connect
  * Streamline input binds (remove MOUSE3 jump duplicate)
  * Reorganize grenade, slot, and buy key bindings
  * Add MatchZy bot placement and quick-save nade system (F1-F8)
  * Add radio/communication wheel binds
  * Fine-tune HUD settings and crosshair size (2.0)
  * Reduce sensitivity from 1.5 to 0.5 for improved precision
  * Optimize viewmodel positioning
  * Add network optimization settings for 1 Gbps fiber connection
  * Expand practice commands for training scenarios

.config/gtk-3.0/bookmarks

@@ -1,5 +1,6 @@
 file:///home/mpuchstein/Documents/personal
 file:///home/mpuchstein/Documents/uni uni
+file:///home/mpuchstein/Nextcloud/DSA-Aufnahmen DSA-Aufnahmen
 file:///home/mpuchstein/Documents
 file:///home/mpuchstein/Pictures
 file:///home/mpuchstein/Music

.config/hypr/hyprland.conf

@@ -201,6 +201,13 @@ input {
     }
 }
 
+device {
+    name = "Logitech Gaming Mouse G502"
+    sensitivity = 0.0
+    accel_profile = flat
+    #force_no_accel = true
+}
+
 
 # Example per-device config
 # See https://wiki.hyprland.org/Configuring/Keywords/#per-device-input-configs for more

.config/hypr/hyprpaper.conf##hostname.owlenpc00

@@ -2,8 +2,7 @@ splash = true
 splash_offset = 2.0
 ipc = true
 
-preload = /home/mpuchstein/Pictures/wallpaper/1920x1080/rosepinesuccubus10.png
-preload = /home/mpuchstein/Pictures/wallpaper/1920x1080/rosepinesuccubus3.png
-preload = /home/mpuchstein/Pictures/wallpaper/1920x1080/rosepineskull.png
-wallpaper = DP-1, /home/mpuchstein/Pictures/wallpaper/1920x1080/rosepinesuccubus10.png
-wallpaper = DP-2, /home/mpuchstein/Pictures/wallpaper/1920x1080/rosepinesuccubus3.png
+preload = /home/mpuchstein/Pictures/wallpaper/ki/1920x1080/witch_autumn.png
+preload = /home/mpuchstein/Pictures/wallpaper/ki/1920x1080/rosepinesuccubus11.png
+wallpaper = DP-1, /home/mpuchstein/Pictures/wallpaper/ki/1920x1080/rosepinesuccubus11.png
+wallpaper = DP-2, /home/mpuchstein/Pictures/wallpaper/ki/1920x1080/witch_autumn.png