fix: remove duplicate clarity titles

src/common/navigation.yaml

@@ -121,10 +121,10 @@ sections:
           - title: Clarity Language
             usePageTitles: true
             pages:
-              - path: /language-clarity
-              - path: /language-clarity-types
-              - path: /language-clarity-keywords
-              - path: /language-clarity-functions
+              - path: /language-overview
+              - path: /language-types
+              - path: /language-keywords
+              - path: /language-functions
   - title: Ecosystem
     pages:
       - path: /overview #pbc et al

src/pages/references/language-clarity-functions.md → src/pages/references/language-functions.md

@@ -1,5 +1,5 @@
 ---
-title: Clarity Functions
+title: Functions
 description: See a detailed list of all functions for the Clarity language.
 ---
 

src/pages/references/language-clarity-keywords.md → src/pages/references/language-keywords.md

@@ -1,5 +1,5 @@
 ---
-title: Clarity Keywords
+title: Keywords
 description: See a detailed list of all keywords for the Clarity language.
 ---
 

src/pages/references/language-clarity.md → src/pages/references/language-overview.md

@@ -1,5 +1,5 @@
 ---
-title: Clarity Language
+title: Overview
 description: Overview of the Clarity language constructs.
 ---
 

src/pages/references/language-clarity-types.md → src/pages/references/language-types.md

@@ -1,5 +1,5 @@
 ---
-title: Clarity Types
+title: Types
 description: See a detailed list of all types for the Clarity language.
 ---