Fix typos (#5476)

### What problem does this PR solve?

Fix lots of typos.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

web/src/locales/en.ts

@@ -282,7 +282,7 @@ export default {
       </p>
       `,
       table: `<p>Supported file formats are <b>XLSX</b> and <b>CSV/TXT</b>.</p><p>
-      Here're some prerequisites and tips:
+      Here are some prerequisites and tips:
       <ul>
     <li>For CSV or TXT file, the delimiter between columns must be <em><b>TAB</b></em>.</li>
     <li>The first row must be column headers.</li>
@@ -313,14 +313,14 @@ export default {
 <p>This approach chunks files using the 'naive'/'General' method. It splits a document into segments and then combines adjacent segments until the token count exceeds the threshold specified by 'Chunk token number', at which point a chunk is created.</p>
 <p>The chunks are then fed to the LLM to extract entities and relationships for a knowledge graph and a mind map.</p>
 <p>Ensure that you set the <b>Entity types</b>.</p>`,
-      tag: `<p>Knowlege base using 'Tag' as a chunking method is supposed to be used by other knowledge bases to add tags to their chunks, queries to which will also be with tags too.</p>
-<p>Knowlege base using 'Tag' as a chunking method is <b>NOT</b> supposed to be involved in RAG procedure.</p>
+      tag: `<p>Knowledge base using 'Tag' as a chunking method is supposed to be used by other knowledge bases to add tags to their chunks, queries to which will also be with tags too.</p>
+<p>Knowledge base using 'Tag' as a chunking method is <b>NOT</b> supposed to be involved in RAG procedure.</p>
 <p>The chunks in this knowledge base are examples of tags, which demonstrate the entire tag set and the relevance between chunk and tags.</p>
 
 <p>This chunk method supports <b>XLSX</b> and <b>CSV/TXT</b> file formats.</p>
 <p>If a file is in <b>XLSX</b> format, it should contain two columns without headers: one for content and the other for tags, with the content column preceding the tags column. Multiple sheets are acceptable, provided the columns are properly structured.</p>
 <p>If a file is in <b>CSV/TXT</b> format, it must be UTF-8 encoded with TAB as the delimiter to separate content and tags.</p>
-<p>In tags column, there're English <b>comma</b> between tags.</p>
+<p>In tags column, there are English <b>comma</b> between tags.</p>
 <i>Lines of texts that fail to follow the above rules will be ignored, and each  pair will be considered a distinct chunk.</i>
 `,
       useRaptor: 'Use RAPTOR to enhance retrieval',
@@ -359,7 +359,7 @@ The above is the content you need to summarize.`,
 This auto-tag feature enhances retrieval by adding another layer of domain-specific knowledge to the existing dataset.
 <p>Difference between auto-tag and auto-keyword:</p>
 <ul>
-  <li>A tag knowledge base is a user-defined close set, whereas keywords extraced by the LLM can be regarded as an open set.</li>
+  <li>A tag knowledge base is a user-defined close set, whereas keywords extracted by the LLM can be regarded as an open set.</li>
   <li>You must upload tag sets in specified formats before running the auto-tag feature.</li>
   <li>The auto-keyword feature is dependent on the LLM and consumes a significant number of tokens.</li>
 </ul>
@@ -398,7 +398,7 @@ This auto-tag feature enhances retrieval by adding another layer of domain-speci
       graph: 'Knowledge graph',
       mind: 'Mind map',
       question: 'Question',
-      questionTip: `If there're given questions, the embedding of the chunk will be based on them.`,
+      questionTip: `If there are given questions, the embedding of the chunk will be based on them.`,
     },
     chat: {
       newConversation: 'New conversation',
@@ -523,7 +523,7 @@ This auto-tag feature enhances retrieval by adding another layer of domain-speci
       useKnowledgeGraphTip:
         'It will retrieve descriptions of relevant entities,relations and community reports, which will enhance inference of multi-hop and complex question.',
       keyword: 'Keyword analysis',
-      keywordTip: `Apply LLM to analyze user's questions, extract keywords which will be emphesize during the relevance omputation.`,
+      keywordTip: `Apply LLM to analyze user's questions, extract keywords which will be emphasize during the relevance computation.`,
       languageTip:
         'Allows sentence rewriting with the specified language or defaults to the latest question if not selected.',
       avatarHidden: 'Hide avatar',