Onboarding · Help: help panel, cheatsheet, what's new, feedback, support, inline help

HelpPanel searches articles and opens one, its body in Markdown, with a
way back; focus follows to All articles and back to the search, a
link to help:<key> opens another, and Contact support and Keyboard
shortcuts wait at its foot. KeyboardShortcutCheatsheet puts
settings::KeyboardShortcutsList in a dialog with its search focused;
WhatsNewDialog puts data_display::Changelog in one with Got it.
FeedbackWidget asks how it is going with four faces and a note, and
thanks. ContactSupport sends a topic and a message, spins while the
owner sends, and empties the message with focus back in it. InlineHelp
is a quiet line with Learn more. HelpTooltip moves to primitives,
where FormLabel's help mark shows it; ToggleGroup keys its toggles by
its own id. EmptyStateWithAction points to feedback::EmptyState.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

assets/icons/frown.svg

@@ -0,0 +1,18 @@
+<!-- @license lucide-static v1.48.0 - ISC -->
+<svg
+  class="lucide lucide-frown"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M15 10V9" />
+  <path d="M9 10V9" />
+  <path d="M9 16a5 5 0 016 0" />
+  <circle cx="12" cy="12" r="10" />
+</svg>

assets/icons/laugh.svg

@@ -0,0 +1,18 @@
+<!-- @license lucide-static v1.48.0 - ISC -->
+<svg
+  class="lucide lucide-laugh"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M15 10V9" />
+  <path d="M7.084 14.302a5.12 5.12 0 009.833 0 .24.24 0 00-.235-.302H7.32a.24.24 0 00-.235.302" />
+  <path d="M9 10V9" />
+  <circle cx="12" cy="12" r="10" />
+</svg>

assets/icons/meh.svg

@@ -0,0 +1,18 @@
+<!-- @license lucide-static v1.48.0 - ISC -->
+<svg
+  class="lucide lucide-meh"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M15 10V9" />
+  <path d="M8 16h8" />
+  <path d="M9 10V9" />
+  <circle cx="12" cy="12" r="10" />
+</svg>