Fix second audit findings and restore crash detection dialog

src/core/inspector.rs

@@ -80,8 +80,7 @@ struct DesktopEntryFields {
 }
 
 fn icons_cache_dir() -> PathBuf {
-    let dir = dirs::data_dir()
-        .unwrap_or_else(|| PathBuf::from("~/.local/share"))
+    let dir = crate::config::data_dir_fallback()
         .join("driftwood")
         .join("icons");
     fs::create_dir_all(&dir).ok();