Feat: Merge title splitter and token splitter into chunker category #9869 (#10517)

### What problem does this PR solve?

Feat: Merge title splitter and token splitter into chunker category
#9869

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/locales/en.ts

@@ -1710,12 +1710,12 @@ This delimiter is used to split the input text into several text pieces echo of
       tokenizerRequired: 'Please add the Indexer node first',
       tokenizerDescription:
         'Transforms text into the required data structure (e.g., vector embeddings for Embedding Search) depending on the chosen search method.',
-      splitter: 'Token Splitter',
+      splitter: 'Token',
       splitterDescription:
         'Split text into chunks by token length with optional delimiters and overlap.',
       hierarchicalMergerDescription:
         'Split documents into sections by title hierarchy with regex rules for finer control.',
-      hierarchicalMerger: 'Title Splitter',
+      hierarchicalMerger: 'Title',
       extractor: 'Transformer',
       extractorDescription:
         'Use an LLM to extract structured insights from document chunks—such as summaries, classifications, etc.',