feat: full_quests_path

- Added Config::full_quests_path
- Fixed quests saving in parent folder

src/config/mod.rs

@@ -88,6 +88,24 @@ impl Config {
         }
     }
 
+    /// Returns full path to quests folder
+    /// This path will be relative to $PWD, not to config.
+    ///
+    /// # Examples
+    /// ```rust
+    /// use squad_quest::config::Config;
+    ///
+    /// let path = "cfg/config.toml".into();
+    /// let config = Config::load(path);
+    /// 
+    /// let quests_path = config.full_quests_path();
+    /// ```
+    pub fn full_quests_path(&self) -> PathBuf {
+        let mut path = self.path.clone();
+        path.push(self.quests_path.clone());
+        path
+    }
+
     /// Load [Vec]<[Quest]> from quests folder.
     /// Also logs errors and counts successfully loaded quests.
     ///
@@ -107,8 +125,7 @@ impl Config {
     pub fn load_quests(&self) -> Vec<Quest> {
         let mut out_vec = Vec::new();
         
-        let mut path = self.path.clone();
-        path.push(self.quests_path.clone());
+        let path = self.full_quests_path();
 
         match fs::read_dir(path) {
             Ok(iter) => {