Opfs

[voluntas]

This pull request includes several changes to the index.html and src/main.mts files to improve functionality and update button references. The most important changes involve renaming buttons, updating the database initialization process, and modifying the handling of Parquet files.

Button and element updates:

• index.html: Renamed buttons from "Scan Parquet" to "Fetch Parquet" and "Clear" to "Purge".
• src/main.mts: Updated button references to match the new names using querySelector instead of getElementById. [1] [2]

Database and file handling improvements:

• src/main.mts: Added code to open the database with read-write access and handle Parquet file reading more effectively. [1] [2]
• src/main.mts: Simplified the process of reading and updating the status of Parquet files, removing unnecessary steps and ensuring the table creation process is more robust.

Button event handling:

• src/main.mts: Updated event listeners for the renamed buttons to reflect the new functionality, including the new "Fetch Parquet" and "Purge" actions. [1] [2]