Simplified scroll to bottom logic

Added root redirect to /webui and updated webui config

Language switching and merging

Merge branch 'improve-property-tooltip' into loginPage

Change to hash routing, webuiInitialize controls project prefix

Increased search and label list limits.

add graph depth and layout iteration settings

feat: retrieval message code highlight, message copy button

Upgraded webui to show more upload options and added building without using bun to the webui

add document manager and site heaer

move lightrag_webui folder to top directory