Normalize versicle notation to plain V./R. across propers

Unicode ℣/℟ (U+2123/U+211F) were mixed unpredictably with plain V./R.
across ~550 proper YAML files, sometimes within the same file. Screen
readers can't announce the unicode glyphs. Replace all instances with
plain text.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QC6jHsj75xcsTkapqJR6fD

src/data/propers/common/vespers-responsory-common-of-a-virgin.yml

@@ -5,18 +5,18 @@ id: vespers-responsory-common-of-a-virgin
 text:
   la: |
     R.br. Adjuvábit eam * Deus vultu suo.
-    ℟. Adjuvábit eam * Deus vultu suo.
-    ℣. Deus in médio ejus, non commovébitur.
-    ℟. Deus vultu suo.
-    ℣. Glória Patri, et Fílio, * et Spirítui Sancto.
-    ℟. Adjuvábit eam * Deus vultu suo.
+    R. Adjuvábit eam * Deus vultu suo.
+    V. Deus in médio ejus, non commovébitur.
+    R. Deus vultu suo.
+    V. Glória Patri, et Fílio, * et Spirítui Sancto.
+    R. Adjuvábit eam * Deus vultu suo.
   en: |
     R.br. God shall help her * with His countenance.
-    ℟. God shall help her * with His countenance.
-    ℣. God is in the midst of her, she shall not be moved.
-    ℟. With His countenance.
-    ℣. Glory be to the Father, and to the Son, * and to the Holy Ghost.
-    ℟. God shall help her * with His countenance.
+    R. God shall help her * with His countenance.
+    V. God is in the midst of her, she shall not be moved.
+    R. With His countenance.
+    V. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    R. God shall help her * with His countenance.
 status:
   la: verified
   en: verified