fix(docs): render Component Reference tables as real Markdown tables

_as_table() only detects tables whose data rows are indented deeper
than a ":"-terminated label. The "Component Reference" tables use a
different convention (header, dashed rule, rows all at the same
indent), so they never matched and fell through to a plain indented
code block on the Starlight site.

Add _as_ruled_table() to recognize that header+rule+rows shape. It
supports N columns, folds word-wrapped continuation lines into the
previous row, and backtick-escapes cells containing "<" or "{" instead
of rejecting the table outright (unlike _as_table's stricter guard,
which those tables would otherwise trip on for angle-bracket
placeholders and brace globs).

Also fixes four ambiguous rows in 07-customization.md where two
columns had collapsed to a single space, making them indistinguishable
from a word-wrapped continuation.

docs/manual/07-customization.md

@@ -153,7 +153,7 @@ all of these commands.
     cd                 zoxide frecency-based navigation        fish builtin cd
     rm                 moves files to trash (recoverable)     command rm (permanent)
     less               $PAGER → ov → less → more → cat       system less
-    du                 duf (disk overview) or dust (dir tree) system du
+    du                 duf (disk overview) or dust (dir tree)  system du
     top                btop resource monitor                  system top
     ping               prettyping --nolegend animation        system ping
     ssh                kitten ssh in Kitty terminal           system ssh
@@ -165,8 +165,8 @@ all of these commands.
     wget               forced --continue (resume downloads)   system wget
     grep/fgrep/egrep   forced --color=auto                    system grep variants
     dir / vdir         forced --color=auto                    system dir / vdir
-    help config        intercepts "help config" → config-help fish builtin help
-    claude             auto-links AGENTS.md as CLAUDE.md before launch command claude
+    help config        intercepts "help config" → config-help  fish builtin help
+    claude             auto-links AGENTS.md as CLAUDE.md before launch  command claude
     edit               multi-editor launcher (GUI/term + fallbacks)  $EDITOR/nvim/nano/vi
 
 When C1 is disabled, `rm` uses bare `command rm` with no wrapper — files
@@ -254,7 +254,7 @@ __fish_config_op_integrations disables all of them.
     ───────────────────────────────────────────────────────────────────────────
     ~60 Kitty/WezTerm abbrs    Active Kitty or WezTerm session
       (:w, :wv, :wh, :t, etc.)
-    Done desktop notifications Graphical desktop with a notification daemon
+    Done desktop notifications  Graphical desktop with a notification daemon
     spwin                      Kitty or WezTerm
     tab                        Kitty, WezTerm, or Konsole
     split                      Kitty or WezTerm