Wrap the dragged copy's time as the block does (#267) (#269)

The floating drag copy hardcoded `maxLines = 1` on both its time label and its title, so picking up a block whose text wrapped clipped it to one line for as long as it was held, and it snapped back on drop.

- `DragCopy` now measures the range at its own width and height, exactly as the block does — same `MAX_TIME_LINES` cap, same spare-height rule.
- The block's measured title budget rides along on `TimelineDrag`, so the copy spends its height the same way the block did; the copy draws through `BlockTitle` now rather than a bare `Text`, so a wrapped title clips the way the block's does.
- That measurement moves into a shared `blockTimeLines`, which Week and Day each had their own copy of.

Deviation from the issue: it names only the time label, but the title had the identical hardcode and the two share one height budget — fixing the range alone would just have moved the mismatch to the title.

The copy still shows the range on a block too short to carry one; that is the feedback the drag exists for and is left as is.

Closes #267

Co-authored-by: Jean-Luc Makiola <business@jeanlucmakiola.de>
Reviewed-on: https://codeberg.org/jlmakiola/calendula/pulls/269

app/src/test/java/de/jeanlucmakiola/calendula/ui/common/EventTitleOverflowTest.kt

@@ -25,16 +25,16 @@ class EventTitleOverflowTest {
     }
 
     @Test
-    fun `a multi-line block keeps the ellipsis, since wrapping needs softWrap`() {
+    fun `a multi-line block wraps whole words and clips, spending none on a dot`() {
         val result = eventTitleOverflowFor(rtl = false, singleLine = false)
-        assertThat(result.overflow).isEqualTo(TextOverflow.Ellipsis)
+        assertThat(result.overflow).isEqualTo(TextOverflow.Clip)
         assertThat(result.softWrap).isTrue()
     }
 
     @Test
-    fun `multi-line in RTL keeps the ellipsis too`() {
+    fun `multi-line in RTL clips too, since softWrap cuts the logical end`() {
         val result = eventTitleOverflowFor(rtl = true, singleLine = false)
-        assertThat(result.overflow).isEqualTo(TextOverflow.Ellipsis)
+        assertThat(result.overflow).isEqualTo(TextOverflow.Clip)
         assertThat(result.softWrap).isTrue()
     }
 }