feat(config): add left sidebar config for herdr-nvim and update descriptions

dot_config/herdr-nvim/config.toml

@@ -0,0 +1,10 @@
+# ── herdr-nvim (chmarax.herdr-nvim) ──
+# Read by the plugin binary from $XDG_CONFIG_HOME/herdr-nvim/config.toml.
+# Bound to ctrl+shift+e in kitty/ghostty → prefix+e (\x02e) → herdr-nvim.toggle.
+
+[sidebar]
+# The nvim pane opens to the LEFT of the existing panes. The plugin collapses
+# the tab's current layout into one anchor group, splits the editor off it, and
+# for "left" round-trips the anchor through a temporary tab so nvim ends up on
+# the left edge and the previous panes sit to its right. Default is "right".
+position = "left"

dot_config/herdr/config.toml

@@ -108,7 +108,7 @@ description = "navigate right (vim/herdr)"
 key = "prefix+e"
 type = "plugin_action"
 command = "chmarax.herdr-nvim.toggle"
-description = "nvim sidebar"
+description = "nvim sidebar (left of current panes; see ~/.config/herdr-nvim/config.toml)"
 
 [[keys.command]]
 key = "prefix+o"

dot_config/kitty/herdr.conf

@@ -48,6 +48,8 @@ map ctrl+tab       send_text all \x02.
 map ctrl+shift+tab send_text all \x02,
 map ctrl+shift+f   send_text all \x02K
 map ctrl+shift+g   send_text all \x02L
+# ctrl+shift+e → prefix+e → herdr-nvim toggle; the editor pane opens on the
+# left (position = "left" in ~/.config/herdr-nvim/config.toml)
 map ctrl+shift+e   send_text all \x02e
 map ctrl+shift+o   send_text all \x02o
 map ctrl+shift+h   send_text all \x02p