Make a pane's tag a Text edited with the body's own keys

The tag was a fixed buffer with its own one-line editor, a cursor measured
across the path, and a hijack of the body's mode while it was typed into.
It is now the pane's second Text: its own characters after the computed
prefix (path, dirty marker, PDF page), which is never stored in it, so a
rename or a dirty marker never moves its cursor. Normal and insert mode are
the body's, undo included; `:` moves the keyboard between body and tag, the
tag remembers its cursor and starts on Save, and executing a word from it
hands the keyboard back. The mouse still sees the prefix: a sweep selects
across it and a click on the path drafts a new name.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/colors.zig b/src/colors.zig
index 741187c6..f92f67b1 100644
--- a/src/colors.zig
+++ b/src/colors.zig
@@ -602,7 +602,7 @@ test "line numbers stay quiet without a current-line tag background" {
     const moved = try p.render(p.scratch.allocator());
     try std.testing.expect(!moved.at(x, y).style.bold);
     try std.testing.expect(moved.at(x, y + 1).style.bold);
-    p.enterTagEdit(pane, -1);
+    p.enterTag(pane);
     const tag_edit = try p.render(p.scratch.allocator());
     try std.testing.expect(!tag_edit.at(x, y + 1).style.bold);
 }