Sync StyleRun/ParagraphRun run lengths with new text length

Photoshop warns the text layer needs conversion / editing changes layout
when the run length array (character-style/paragraph length per run) does
not match the text. We changed Editor.Text but left RunLengthArray at the
template's 16, so PS flagged every TypeLayer. Now set both run length
arrays to len(text).

ppl2psd.py

@@ -520,6 +520,11 @@ def build_type_layer_tysh(ly: dict, font_ps: str) -> bytes:
     editor["Text"] = String(text + "\r")
     # Txt (legacy text) value mirrors the engine text so readers agree
     td[b"Txt "].value = text + "\x00"
+    # Style/paragraph run lengths must match the new text length, otherwise
+    # Photoshop warns the text layer needs conversion / editing changes layout.
+    text_len = len(text)
+    eng["StyleRun"]["RunLengthArray"] = List([Integer(text_len)])
+    eng["ParagraphRun"]["RunLengthArray"] = List([Integer(text_len)])
 
     prof = font_profile(_font_path_for(ly))
     size_px = float(ly.get("textSize", "12") or 12) * prof["k"]