Update version of gema_texto

Remove no longer necessary code

Bump version

Use gema_texto for gemini parsing

Update man page

Update README

Remove fail threshold as it's not consistent

Add Tarpaulin to CI, fail under 100

Use String::new() for empty strings

Fix test

Reformat

Address pedantic issues

Some more linter improvements

Format and lint the code

Update layout tests

Update file strategy tests

Update file handler mod tests

Update main and file_finder tests

Add first tests

Use sections instead of divs