Select Color: Document and Color books tabs

Document tab: every concrete colour the drawing uses (objects, block
definitions and layers), found in one pass when the panel opens, as a
grid of swatches sortable by recently used, most used, colour and colour
number. The recently-used list is now kept per drawing, so the ribbon's
Recent row shows this drawing's colours.

Color books tab: load AutoCAD .acb colour books (remembered in the
settings on desktop), browse them page by page with the page strip,
search by name and see the RGB equivalent. A book colour is applied as
RGB plus its BOOK$NAME identity on objects and layers instead of
dropping the name.

Strings translated into all 22 locales.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013rGmDUNr1hUf4zo1X3dak8

src/scene/view/dispatch.rs

@@ -322,6 +322,12 @@ pub fn apply_color(entity: &mut EntityType, color: AcadColor) {
     common.color_book_handle = None;
 }
 
+/// Like [`apply_color`], but keeps a colour-book identity (`BOOK$NAME`).
+pub fn apply_named_color(entity: &mut EntityType, color: AcadColor, name: Option<String>) {
+    apply_color(entity, color);
+    entity.common_mut().color_name = name;
+}
+
 pub fn apply_line_weight(entity: &mut EntityType, lw: LineWeight) {
     entity.as_entity_mut().set_line_weight(lw);
 }