feat(ui): translate="no", and a title of several lines translated whole or line by line

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

examples/library/ui_translate.ludic

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+# ui_translate.ludic — translation: translate="no" keeps an element's text (and everything inside it)
+# as written, translate="yes" inside it translates again; a title of several lines is translated whole
+# when the translator knows it whole, else line by line, and not inside translate="no".
+import "ludic.ui"
+program UiTranslate {
+  numbers float
+  var said: []string = new []string
+  var now: float = 0.0
+  const PAGE: string = "<ui><screen name='t'><p>Hello</p><p translate='no'>Hello</p><div translate='no'><p>Hello</p><p translate='yes'>Hello</p></div><p class='a' title='Save\\nQuit'>a</p><p class='b' title='Line one\\nLine two'>b</p><div translate='no'><p class='c' title='Line one\\nLine two'>c</p></div></screen></ui>"
+  function tr(s: string) -> string {
+    if s == "Hello" { return "Merhaba" }
+    if s == "Save\\nQuit" { return "Kaydet ve cik" }
+    if s == "Line one" { return "Satir bir" }
+    if s == "Line two" { return "Satir iki" }
+    return s
+  }
+  function rec_text(x: float, y: float, s: string, size: float, c: int, a: float) -> void { push(said, s) }
+  function clock() -> float { return now }
+  function tip(root: UiNode, k: int) -> string {
+    let n = root.children[k]
+    let i = new UiInput
+    i.x = n.x + 1.0
+    i.y = n.y + 1.0
+    ui_input(i)
+    ui_show("t", null, 0.0, 0.0, 400.0, 400.0)
+    now = now + 1.0
+    said = new []string
+    ui_input(i)
+    ui_show("t", null, 0.0, 0.0, 400.0, 400.0)
+    return `{said[len(said) - 2]}/{said[len(said) - 1]}`
+  }
+  entry {
+    let b = new UiBackend
+    b.text = fn rec_text
+    ui_backend(b)
+    ui_translator(fn tr)
+    ui_clock(fn clock)
+    ui_load_text(PAGE, "t.xml")
+    let root: UiNode = ui_nodes("t", null)
+    ui_place(root, 0.0, 0.0, 400.0, 400.0)
+    let texts = `{root.children[0].text} {root.children[1].text} {root.children[2].children[0].text} {root.children[2].children[1].text}`
+    print(`{texts} | {tip(root, 3)} | {tip(root, 4)} | {tip(root, 5)}`)
+  }
+}