lots of changes

- changed music command
- added music to backup
- showmethekey more window rules
- added mpv config
- added seahorse to all reqs
- nvim
    - added render markdown
    - added treesitter. ive been using just my systems treesitter.
    - fixed undotree bind
    - removed eldritch theme. it broke

env/.config/mpv/mpv.conf

@@ -0,0 +1,6 @@
+sub-color='#FFFF00' #subtitle color in rgb
+sub-shadow-color='#000000' #shadow color 
+sub-font='Noto Sans' #set font
+sub-bold=yes
+sub-font-size=60
+sub-pos=95 #subtitle position 5 percent above the bottom of the screen