add post install welcome session

welcome-after

@@ -0,0 +1,23 @@
+#!/bin/env bash
+
+DIR=~/.local/share/tcet-welcome
+
+yad --title "Welcome" \
+    --form \
+    --window-icon=$DIR/assets/tcetlinux-logo.png \
+    --columns=2\
+    --rows=5 \
+    --width=640 \
+    --height=380 \
+    --no-escape \
+    --image=$DIR/assets/Tcet_Linux.png \
+    --field="<b>Update this PC</b>":fbtn "bash -c '$DIR/scripts/update.sh'" \
+    --field="<b>Fix Screen Resolution</b>":fbtn "xfce4-terminal -x  '$DIR/scripts/screen-resolution.sh'" \
+    --field="<b>Arch AUR</b>":fbtn "bash -c '$DIR/scripts/aur.sh'" \
+    --field="<b>Our Discord</b>":fbtn "bash -c '$DIR/scripts/discord.sh'" \
+    --field="<b>About US</b>":fbtn "bash -c  '$DIR/scripts/py-about.sh'" \
+    --field="<b>Update Mirror</b>":fbtn "xfce4-terminal -x '$DIR/scripts/mirror.sh'" \
+    --field="<b>Arch Wiki</b>":fbtn "bash -c '$DIR/scripts/archwiki.sh'" \
+    --field="<b>Our Github Profile</b>":fbtn "bash -c  '$DIR/scripts/github.sh'" \
+    --field="<b>Autostart</b>":fbtn " xfce4-terminal -x '$DIR/scripts/autostart.sh'"\
+    --button=Exit:1 \