chore: migrate omarchy state from ~/.config to ~/.local/state

Move all omarchy runtime state (themes, backgrounds, current theme)
from ~/.config/omarchy/current to ~/.local/state/omarchy/current
to keep the config dir free of generated files. Add mise task for
recreating symlinks and update credential helpers for tea.

config/foot/foot.ini

@@ -4,10 +4,11 @@ term=xterm-256color
 pad=6x6
 initial-window-mode=windowed
 workers=0
-include=~/.config/omarchy/current/theme/foot.ini
+include=~/.local/state/omarchy/current/theme/foot.ini
 
 [scrollback]
 lines=10000
+multiplier=7.0
 
 [cursor]
 style=block
@@ -20,3 +21,12 @@ clipboard-paste=Shift+Insert Control+Shift+v XF86Paste
 
 [tweak]
 overflowing-glyphs=yes
+
+[text-bindings]
+# Send Shift+Return as CSI-u so TUIs can distinguish it from Return.
+\x1b[13;2u=Shift+Return
+# Send Alt+Shift+Return as CSI-u so tmux can match M-S-Enter.
+\x1b[13;4u=Mod1+Shift+Return
+
+
+