Style rule tweaks (#4031)

Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>

.github/vale/styles/OpenSearch/DirectionAboveBelow.yml

@@ -18,5 +18,5 @@ swap:
   - 'above table': 'preceding table'
   - '\d+\.\d+\s+(?:and|or)\s+above': 'later'
   - '\d+\.\d+\s+(?:and|or)\s+below': 'earlier'
-  - 'below(?!\s+(?:the|this|\d))': 'previous, preceding, or earlier'
-  - 'above(?!\s+(?:the|this|\d))': 'following or later'
+  - 'below(?!\s+(?:the|this|\d))': 'following or later'
+  - 'above(?!\s+(?:the|this|\d))': 'previous, preceding, or earlier'

.github/vale/styles/OpenSearch/LatinismsSubstitution.yml

@@ -1,7 +1,7 @@
 extends: substitution
 message: "Use '%s' instead of '%s'."
 link: https://github.com/opensearch-project/documentation-website/blob/main/STYLE_GUIDE.md#basic-guidelines
-ignorecase: true
+ignorecase: false
 level: warning
 nonword: true
 action:
@@ -9,7 +9,7 @@ action:
 swap:
   '\b(?:eg|e\.g\.)[\s,]': for example or such as
   '\b(?:ie|i\.e\.)[\s,]': that is or specifically
-  'ad hoc': one-time
-  '\b(?:v\.|vs\.|vs|versus)': compared to or compared with
-  'via': using, through, by accessing, or by choosing
-  'vice versa': the other way around
+  '\bad hoc[\s,.]': one-time
+  '\b(?:v\.|vs\.|vs|versus)\s': compared to or compared with
+  '\bvia\s': using, through, by accessing, or by choosing
+  '\bvice versa': the other way around