Move the frame into draw.zig and the transitions out of layout.zig

Pure moves, no behaviour change. draw.zig holds the whole core frame in
order: render, the pane, tag, header and notice painters it calls, and the
character-effect composition (Pardes.render stays a declaration alias).
Presentation.zig is the panel presentation state as a file struct, and
animation.zig the easing curves, transition kinds, tracks and boxes, the
character effects' sources and the generic displayed-value transition, all
of which lived in layout.zig. layout.zig keeps only layout.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/look.zig b/src/look.zig
index d7e763d3..8f9e15f2 100644
--- a/src/look.zig
+++ b/src/look.zig
@@ -8,6 +8,7 @@ const pdf_enabled = @import("pardes_config").mupdf;
 const fs = @import("fs.zig");
 const platform_has_fs = fs.platform_has_fs;
 const layout = @import("layout.zig");
+const animation = @import("animation.zig");
 const modal = @import("modal.zig");
 const filesystem = @import("fs.zig");
 const panes = @import("panes.zig");
@@ -1367,13 +1368,13 @@ test "stationary Look hover follows only acknowledged panel samples" {
     defer p.deinit();
     const pane = p.panes[0].?;
     const rect = p.rects[0];
-    const target: layout.Box = .{
+    const target: animation.Box = .{
         .x = @floatFromInt(rect.x),
         .y = @floatFromInt(rect.y),
         .w = @floatFromInt(rect.w),
         .h = @floatFromInt(rect.h),
     };
-    var track: layout.Track = .{
+    var track: animation.Track = .{
         .serial = pane.serial,
         .pane = 0,
         .phase = .moving,