add relay note UI/badge

[alltheseas]

Relay Badge Ready

• Relay badge icon now hides while hovered/open, keeping the server
  glyph only when idle.
• Hover tooltip shows the full relay list (newline-separated) to match
  the popover contents.
• Popover list is text-only; relay URLs remain sorted and deduped via
  collect_note_relays.

File touched: crates/notedeck_ui/src/note/mod.rs

Tests

• cargo fmt --manifest-path Cargo.toml --all
• cargo check -p notedeck_ui

[Copilot]

Pull Request Overview

This PR adds a relay indicator to the note action bar that displays which relays a note has been seen on. The indicator appears as a badge showing the count of relays and provides a context menu to view the full list.

• Added relay indicator badge that displays relay count and provides relay details on interaction
• Refactored action bar layout to use right-to-left layout with relay indicator on the right side
• Extended render_note_actionbar signature to accept note and txn parameters needed for relay metadata

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[Copilot]

The conditional assignment if bar_action.is_some() { action = bar_action; } is redundant. Since bar_action is Option<NoteAction>, you can directly assign it with action = bar_action; or use action = bar_action.or(action); to preserve any previous action if bar_action is None.

Suggested change

	if bar_action.is_some() {
	action = bar_action;
	}
	action = bar_action;

[Copilot]

The clone of relays (a Vec<&str>) is unnecessary here. Since the hover_ui closure is not 'move' and runs synchronously within the same frame, you can capture &relays by reference instead. Remove the clone and change the closure to use &relays directly.

Suggested change

	let tooltip_relays = relays.clone();
	response = response.on_hover_ui(move |ui| {
	ui.spacing_mut().item_spacing.y = 2.0;
	for relay in tooltip_relays {
	response = response.on_hover_ui(|ui| {
	ui.spacing_mut().item_spacing.y = 2.0;
	for relay in &relays {

[alltheseas]

@kernelkind I ran puffin, and I don't see major jumps in the puffin graphs when I interact with the relay badge UI element

relaybadgenote.mp4

[kernelkind]

1. it's weird how the relay icon stops rendering when you're hovering over it
2. on android, this introduced a regression where the spacing in the x direction changes for different notes as you scroll the timeline. I'm guessing it's due to https://github.com/alltheseas/notedeck/blob/05bb697c3c6923f0661f2697bdcb836929a7168b/crates/notedeck_ui/src/note/mod.rs#L235