Reformat Terce/Sext/None capitulum text as multi-line block scalars

Every capitulum-*.yml under the three Little Hours combined the chapter,
"R. Deo grátias"/"Thanks be to God", and the trailing V./R. pair into one
flat single-line string. The .lang-column CSS already renders on
white-space: pre-line (as little-hour-conclusio.yml's block-scalar text
already demonstrated), so the run-together rendering was purely a missing
line-break bug in the source YAML, not a CSS or resolver issue.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PXySSbbUh1EhdN1RnAoCaP

src/data/propers/common/sext-capitulum-common-of-a-virgin.yml

@@ -9,8 +9,16 @@
 # template `collect-c6a` too, same finding).
 id: sext-capitulum-common-of-a-virgin
 text:
-  la: "Æmulor enim vos Dei æmulatióne. Despóndi enim vos uni viro vírginem castam exhibére Christo. R. Deo grátias. V. Adjuvábit eam Deus vultu suo. R. Deus in médio ejus, non commovébitur."
-  en: "For I am jealous of you with the jealousy of God. For I have espoused you to one husband that I may present you as a chaste virgin to Christ. R. Thanks be to God. V. God shall help her with His countenance. R. God is in the midst of her she shall not be moved."
+  la: |
+    Æmulor enim vos Dei æmulatióne. Despóndi enim vos uni viro vírginem castam exhibére Christo.
+    R. Deo grátias.
+    V. Adjuvábit eam Deus vultu suo.
+    R. Deus in médio ejus, non commovébitur.
+  en: |
+    For I am jealous of you with the jealousy of God. For I have espoused you to one husband that I may present you as a chaste virgin to Christ.
+    R. Thanks be to God.
+    V. God shall help her with His countenance.
+    R. God is in the midst of her she shall not be moved.
 citation:
   la: "2 Cor 11:2"
   en: "2 Cor 11:2"