server: clean up some renamed imports

server/src/bin/cleanhtml.rs

@@ -1,6 +1,6 @@
 use std::fs;
 
-use server::sanitize_html;
+use letterbox_server::sanitize_html;
 
 fn main() -> anyhow::Result<()> {
     let mut args = std::env::args().skip(1);

server/src/bin/email2db.rs

@@ -1,6 +1,6 @@
 use chrono::NaiveDateTime;
 use clap::Parser;
-use server::mail::read_mail_to_db;
+use letterbox_server::mail::read_mail_to_db;
 use sqlx::postgres::PgPool;
 
 /// Add certain emails as posts in newsfeed app.