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-confessor-doctor.yml

@@ -5,18 +5,18 @@ id: vespers-responsory-common-of-a-confessor-doctor
 text:
   la: |
     R.br. Elégit eum Dóminus * Sacerdótem sibi.
-    ℟. Elégit eum Dóminus * Sacerdótem sibi.
-    ℣. Ad sacrificándum ei hóstiam laudis.
-    ℟. Sacerdótem sibi.
-    ℣. Glória Patri, et Fílio, * et Spirítui Sancto.
-    ℟. Elégit eum Dóminus * Sacerdótem sibi.
+    R. Elégit eum Dóminus * Sacerdótem sibi.
+    V. Ad sacrificándum ei hóstiam laudis.
+    R. Sacerdótem sibi.
+    V. Glória Patri, et Fílio, * et Spirítui Sancto.
+    R. Elégit eum Dóminus * Sacerdótem sibi.
   en: |
     R.br. The Lord hath chosen him * for a Priest unto Himself.
-    ℟. The Lord hath chosen him * for a Priest unto Himself.
-    ℣. To offer up unto Him the sacrifice of praise.
-    ℟. For a Priest unto Himself.
-    ℣. Glory be to the Father, and to the Son, * and to the Holy Ghost.
-    ℟. The Lord hath chosen him * for a Priest unto Himself.
+    R. The Lord hath chosen him * for a Priest unto Himself.
+    V. To offer up unto Him the sacrifice of praise.
+    R. For a Priest unto Himself.
+    V. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    R. The Lord hath chosen him * for a Priest unto Himself.
 status:
   la: verified
   en: verified