Replace open_html with open crate

Author: nozwock

src/handlers/html_opener.rs

@@ -1,6 +1,5 @@
 pub mod execution;
 mod helpers;
-pub mod html_opener;
 pub mod leetcode;
 pub mod submission;
 pub mod user;

src/handlers/mod.rs

@@ -1,6 +1,5 @@
 use crate::args::Cli;
 use crate::file_parser::codefile::CodeFile;
-use crate::handlers::html_opener::open_html;
 use crate::utils::{execute_testcases, submit};
 
 use args::Commands;
@@ -40,7 +39,7 @@ fn main() -> Result<()> {
             let filename = "daily_challenge.html";
             std::fs::write(filename, question.content)?;
             println!("Saved question as HTML to {}", filename.cyan());
-            open_html(filename);
+            open::that(filename)?;
         }
         Some(Commands::Question { question_name }) => {
             let question_name = if let Some(idx) = question_name.find("leetcode.com/problems/") {
@@ -62,7 +61,7 @@ fn main() -> Result<()> {
             // save to filename
             std::fs::write(&filename, question.content)?;
             println!("Saved question as HTML to {}", filename.cyan());
-            open_html(&filename);
+            open::that(filename)?;
         }
         Some(Commands::RunCustom {
             testcases,