feat(config-toggle): drop Space, add vim h/l for value changes

Directional arrows fully cover value changes, so the Space cycle is
removed. Add h/l as vim-style aliases for ←/→ (matching the existing
j/k for up/down), keeping the whole keymap hjkl-consistent. Update the
in-panel hint, help text, docstrings, and offline docs accordingly.

docs/fish-config.md

@@ -1236,15 +1236,14 @@ Add -i (interactive confirmation) to destructive commands:
     regardless of the __fish_config_opinionated master state.
 
     Navigation:
-      ↑ ↓ / j k   Move cursor
+      ↑ ↓ / k j   Move cursor
-      ← →          Set value directionally: OFF ← DEFAULT → ON (clamped)
+      ← → / h l   Set value: OFF ← DEFAULT → ON (clamped)
-      Space        Cycle through all states: ON → OFF → DEFAULT → ON (wraps)
       Tab          Switch scope (Universal ↔ Session)
       q / Escape   Exit
 
-    Left/Right move one step along the OFF–DEFAULT–ON scale and stop at the
+    Left/Right (or vim-style h/l) move the highlighted value one step along
-    ends; Space cycles through every state and wraps around. DEFAULT erases
+    the OFF–DEFAULT–ON scale and stop at the ends. DEFAULT erases the
-    the variable so the master switch / built-in default applies.
+    variable so the master switch / built-in default applies.
 
     Flags:
       --help / -h   Show usage.

functions/__config_toggle_apply.fish

@@ -6,8 +6,8 @@
 #
 # DESCRIPTION
 #   Applies a state value to an opinionated-component variable in the given
-#   scope, immediately and persistently. Used by config-toggle's Space (cycle)
+#   scope, immediately and persistently. Used by config-toggle's Left/Right
-#   and Left/Right (directional) handlers so the set/erase logic lives in one
+#   (and vim h/l) directional handlers so the set/erase logic lives in one
 #   place. A value of "DEFAULT" erases the variable in that scope so the
 #   master switch / built-in default takes over again.
 #

functions/__config_toggle_draw.fish

@@ -133,7 +133,7 @@ function __config_toggle_draw
     # ── Keybind hint ──────────────────────────────────────
     # Padded to the inner width so the right border stays aligned regardless
     # of the hint text. string pad is width-aware (arrows count as 1 column).
-    set -l hint " ↑↓ move  ←→ set  Space cycle  Tab scope  q quit"
+    set -l hint " ↑↓/kj move  ←→/hl set  Tab scope  q quit"
     printf '│%s%s%s│\n' $c_dim (string pad -r -w $IW -- $hint) $c_reset
 
     # ── Bottom border ─────────────────────────────────────

functions/config-toggle.fish

@@ -13,8 +13,9 @@
 #     Universal — persists across all sessions (set -U / set -Ue)
 #     Session   — active for the current shell only (set -g / set -eg)
 #
-#   Changes apply immediately on each Space keypress — no confirm step.
+#   Values are changed directionally with the arrow keys (or vim-style h/l)
-#   Always available regardless of __fish_config_opinionated state.
+#   along an OFF ← DEFAULT → ON scale, and apply immediately — no confirm
+#   step. Always available regardless of __fish_config_opinionated state.
 #
 # ARGUMENTS
 #   -h, --help  Print usage and exit
@@ -43,9 +44,8 @@ function config-toggle --description 'Interactive TUI for toggling opinionated c
                 echo "  Changes apply immediately — no confirm step required."
                 echo
                 echo "$c_head""Navigation:$c_reset"
-                echo "  $c_flag↑ ↓$c_reset or $c_flag""j k$c_reset    Move cursor up / down"
+                echo "  $c_flag↑ ↓$c_reset or $c_flag""k j$c_reset    Move cursor up / down"
-                echo "  $c_flag← →$c_reset           Set value: OFF ← DEFAULT → ON (clamped)"
+                echo "  $c_flag← →$c_reset or $c_flag""h l$c_reset    Set value: OFF ← DEFAULT → ON"
-                echo "  $c_flag""Space$c_reset         Cycle: ON → OFF → DEFAULT → ON (wraps)"
                 echo "  $c_flag""Tab$c_reset           Switch scope (Universal ↔ Session)"
                 echo "  $c_flag""q$c_reset / $c_flag""Esc$c_reset       Exit"
                 echo
@@ -108,22 +108,7 @@ function config-toggle --description 'Interactive TUI for toggling opinionated c
                 else
                     set cur_scope universal
                 end
-            case space   # Space — cycle through all states and apply
+            case right l   # → / l — step toward ON (clamped, no wrap)
-                set -l varname $vars[(math $cur_row + 1)]
-                set -l cur_val (__config_toggle_get_val $varname $cur_scope)
-
-                # Cycle (wraps): on → off → DEFAULT → on
-                set -l next_val on
-                switch $cur_val
-                    case on
-                        set next_val off
-                    case off
-                        set next_val DEFAULT
-                    case '*'   # DEFAULT or any unrecognised
-                        set next_val on
-                end
-                __config_toggle_apply $varname $cur_scope $next_val
-            case right   # → step toward ON (clamped, no wrap)
                 set -l varname $vars[(math $cur_row + 1)]
                 set -l cur_val (__config_toggle_get_val $varname $cur_scope)
 
@@ -138,7 +123,7 @@ function config-toggle --description 'Interactive TUI for toggling opinionated c
                         set next_val on
                 end
                 __config_toggle_apply $varname $cur_scope $next_val
-            case left    # ← step toward OFF (clamped, no wrap)
+            case left h   # ← / h — step toward OFF (clamped, no wrap)
                 set -l varname $vars[(math $cur_row + 1)]
                 set -l cur_val (__config_toggle_get_val $varname $cur_scope)