✨ Brave for the search engine (#335)

* feat: implement brave engine

* refactor: correct indentations in stylelint config

* docs: add dummy config option to config.lua

* feat: implement safe_search_level in brave engine

* refactor: move var to format

* fix: make strict search above level 1

src/models/engine_models.rs

@@ -150,6 +150,10 @@ impl EngineHandler {
                     let engine = crate::engines::searx::Searx::new()?;
                     ("searx", Box::new(engine))
                 }
+                "brave" => {
+                    let engine = crate::engines::brave::Brave::new()?;
+                    ("brave", Box::new(engine))
+                }
                 _ => {
                     return Err(Report::from(EngineError::NoSuchEngineFound(
                         engine_name.to_string(),