chore: gitignore Testnet.toml / Mainnet.toml both in clarinet and clarinet projects

Author: Ludo Galabru

.gitignore

@@ -10,4 +10,6 @@ target
 index.node
 npm-debug.log*
 node-bindings/dist
-node-bindings/build
+node-bindings/build
+**/settings/Mainnet.toml
+**/settings/Testnet.toml

src/generate/project.rs

@@ -153,8 +153,8 @@ impl GetChangesForNewProject {
     fn create_gitignore(&mut self) {
         let content = format!(
             r#"
-settings/Mainnet.toml
-settings/Testnet.toml
+**/settings/Mainnet.toml
+**/settings/Testnet.toml
 history.txt
 "#,
         );