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/st-jane-frances-de-chantal-commemoration.yml

@@ -22,7 +22,7 @@ text:
     Orémus.
     Omnípotens et miséricors Deus, qui beátam Joánnam Francíscam, tuo amóre succénsam, admirábili spíritus fortitúdine per omnes vitæ sémitas in via perfectiónis donásti, quique per illam illustráre Ecclésiam tuam nova prole voluísti: ejus méritis et précibus concéde; ut, qui infirmitátis nostræ cónscii de tua virtúte confídimus, cæléstis grátiæ auxílio cuncta nobis adversántia vincámus.
     Per Dóminum nostrum Jesum Christum, Fílium tuum: qui tecum vivit et regnat in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
-    ℟. Amen.
+    R. Amen.
   en: |
     Ant. Give her * of the fruit of her hands, and let her own works praise her in the gates.
     V. Grace is poured into thy lips.
@@ -30,7 +30,7 @@ text:
     Let us pray.
     O Almighty and merciful God, Who didst enkindle the love of thyself in the blessed Jeanne Frances, Who didst give unto her the grace to make every path of life temporal the straight and narrow way which leadeth unto life eternal, and Who wast pleased to use her as a mean whereby to adorn thy Church with a new sisterhood, grant unto us for that thine handmaid's sake, and at her prayers, that we who know that we have no strength as of ourselves to help ourselves, and therefore do put all our trust in thine Almighty power, may by the assistance of thy heavenly grace, always prevail in all things against whatsoever shall arise to fight against us.
     Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end.
-    ℟. Amen.
+    R. Amen.
 status:
   la: verified
   en: verified