fix broken paths when returning target path is enabled

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tux-icons"
-version = "0.2.0"
+version = "0.2.1"
 edition = "2021"
 license = "MIT"
 description = "A library for getting desktop icons in linux"

README.md

@@ -15,7 +15,7 @@ cargo add tux-icons
 Or add it manually in cargo.toml:
 ```toml
 [dependencies]
-tux-icons = "0.2.0"
+tux-icons = "0.2.1"
 ```
 
 # Usage

src/icon_fetcher/mod.rs

@@ -36,13 +36,19 @@ fn get_system_icon_pack() -> String {
 fn get_target_path(path: impl Into<PathBuf>) -> Option<PathBuf> {
     let path: PathBuf = path.into();
 
+    println!("Is symlink: {}", path.is_symlink());
+
     if !path.is_symlink() {
         return Some(path);
     }
 
     return if let Ok(link) = path.read_link() {
         return if link.is_relative() {
-            Some(path.join(link))
+            if let Some(parent) = path.parent(){
+                Some(parent.join(link))
+            }else{
+                None
+            }
         } else {
             Some(link)
         };

src/main.rs

@@ -2,7 +2,7 @@ use tux_icons::icon_fetcher::IconFetcher;
 
 fn main(){
     let fetcher = IconFetcher::new().set_return_target_path(true);
-    let path = fetcher.get_icon_path_from_desktop("/usr/share/applications/nwg-look.desktop");
+    let path = fetcher.get_icon_path_from_desktop("/usr/share/applications/blueman-adapters.desktop");
 
     println!("Path: {:?}", path);
 }