Run xrdb and xmodmap at container startup

Alfons reported that Pclock (in the "Personal" menu category) does not work in the Daedalus container. Yes, it requires 'xrdb' to run to load the dpi from /root/.Xresources. Github fix:

https://github.com/bkauler/woofq/commit/d8314ad41ac52209198353ca8a877eb92b70a466

...have also attempted to improve the container desktop startup speed.

Alfons also reported that Lite-XL text editor and Ycalc calculator do not work in the Daedalus container. Yes, I have removed those from builtin.

Something that Caramel figured out before was to run 'setxkbmap' before starting 'jwm'. It seems that we might have to do this also in the nested Xephyr server:

https://github.com/bkauler/woofq/commit/e359af486b18996e6fe1097884c57b557a8ab98b   

Tags: easy