bashrc: fix rssh compatibility
git: enable signed push if server supports it
bash: add xdg workaround for pass
bash: imgcat: fix unneeded escape
bash: imgcat: handle unavailable estimation
bash: add function to cat image with sixel
with max size of estimated printable size without scrolling
foot: set term to xterm-256color
vim: add foot ime sequence
bash: level prompt: add foot support
sway: complete shuffle key
bashrc: functions: use doas
bash: use sudo completion for doas (workaround)
bashrc: add composer1+php7 alias