Remove state file and solutions dir from .gitignore

src/dev/new.rs

@@ -76,8 +76,8 @@ pub fn new(path: &Path, no_git: bool) -> Result<()> {
 
 pub const GITIGNORE: &[u8] = b".rustlings-state.txt
 Cargo.lock
-target
-.vscode
+target/
+.vscode/
 !.vscode/extensions.json
 ";
 

src/init.rs

@@ -92,11 +92,9 @@ const INIT_SOLUTION_FILE: &[u8] = b"fn main() {
 }
 ";
 
-const GITIGNORE: &[u8] = b".rustlings-state.txt
-solutions
-Cargo.lock
-target
-.vscode
+const GITIGNORE: &[u8] = b"Cargo.lock
+target/
+.vscode/
 ";
 
 pub const VS_CODE_EXTENSIONS_JSON: &[u8] = br#"{"recommendations":["rust-lang.rust-analyzer"]}"#;