web: declutter the UI, fix date arrows, red * for bookmarked verses in reader

Daily page (index.html):
- Date arrows now step the date input client-side and dispatch its change, so
  they move relative to the CURRENT day and update the shown date (they were
  stuck one step from the initial date, computed server-side).
- Theme picker removed (theme lives only in /settings now); bookmarks link
  removed (bookmarks belong to the reader, not the daily readings).
- reader/settings nav + the download links move to a right-aligned .controls-side
  cluster; essential controls (date, lectionary, versions, parts, layout, mono)
  stay on the left. mono stops its change bubbling so it no longer refetches.

Reader (reader.html + RenderPassage): a bookmarked verse now shows a red "*"
(end of line in columns, after the verse number interlinear). Threaded a
marked set (keyed "chap:verse") through the reader render path only; the daily
RenderReadings path is untouched.

Settings (settings.html): Save button moved to the top; removed offline (dead),
width and pager (CLI/TUI-only, no web effect) -- their config values are
preserved since the handler no longer reads/zeroes them.

Footer: source/licence centred.

Web tests + full suite green both build modes.

1 files changed, 3 insertions, 3 deletions

diff --git a/internal/web/render_test.go b/internal/web/render_test.go
index 94d5e6e..4cd1301 100644
--- a/internal/web/render_test.go
+++ b/internal/web/render_test.go
@@ -200,7 +200,7 @@ func TestRenderReadingsLocalizesEN(t *testing.T) {
 }
 
 func TestRenderPassageColumns(t *testing.T) {
-	html := string(RenderPassage("John", "John", 3, []string{"wuj"}, "vertical", "en"))
+	html := string(RenderPassage("John", "John", 3, []string{"wuj"}, "vertical", "en", nil))
 	if !strings.Contains(html, "John 3") { // passage heading, independent of the corpus
 		t.Errorf("passage columns missing heading:\n%s", html)
 	}
@@ -213,7 +213,7 @@ func TestRenderPassageColumns(t *testing.T) {
 }
 
 func TestRenderPassageInterlinear(t *testing.T) {
-	html := string(RenderPassage("John", "John", 3, []string{"wuj", "vul"}, "interlinear", "en"))
+	html := string(RenderPassage("John", "John", 3, []string{"wuj", "vul"}, "interlinear", "en", nil))
 	if !strings.Contains(html, "3:16") {
 		t.Errorf("interlinear missing verse:\n%s", html)
 	}
@@ -222,7 +222,7 @@ func TestRenderPassageInterlinear(t *testing.T) {
 func TestRenderPassageMissingVersion(t *testing.T) {
 	// A non-existent chapter yields no verses: the column must carry the
 	// "(not in wuj)" note, never a panic or an empty column.
-	html := string(RenderPassage("John", "John", 999, []string{"wuj"}, "vertical", "en"))
+	html := string(RenderPassage("John", "John", 999, []string{"wuj"}, "vertical", "en", nil))
 	if !strings.Contains(html, "wuj") {
 		t.Errorf("missing-passage note absent:\n%s", html)
 	}