Feat: Add German language support for agent template and various UI elements (#12830)

### What problem does this PR solve?

This PR updates and extends the german language support in the frontend.
Additionally two more elements are handled dynamically now. The
interactive Agent is also titled and described in german now.

### Type of change

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

Co-authored-by: Jakob <16180662+hauberj@users.noreply.github.com>

web/src/locales/en.ts

@@ -85,6 +85,7 @@ export default {
       description:
         'Sign up for free to explore top RAG technology. Create knowledge bases and AIs to empower your business.',
       review: 'from 500+ reviews',
+      seeAll: 'See all',
     },
     header: {
       knowledgeBase: 'Dataset',
@@ -669,6 +670,7 @@ This auto-tagging feature enhances retrieval by adding another layer of domain-s
         'In a knowledge graph, a community is a cluster of entities linked by relationships. You can have the LLM generate an abstract for each community, known as a community report. See here for more information: https://www.microsoft.com/en-us/research/blog/graphrag-improving-global-search-via-dynamic-community-selection/',
       theDocumentBeingParsedCannotBeDeleted:
         'The document being parsed cannot be deleted',
+      lastWeek: 'from last week',
     },
     chunk: {
       type: 'Type',