fix: use Unknown for addon tag if config can't be read

Author: pepperoni505

src/wasm/src/config.rs

@@ -21,9 +21,11 @@ pub struct Config {
 
 impl Config {
     /// Try to get the config
-    pub fn get_config() -> Result<Self> {
-        let file = File::open(ADDON_CONFIG_FILE)?;
-
-        Ok(serde_json::from_reader(file)?)
+    pub fn get_config() -> Option<Self> {
+        if let Ok(file) = File::open(ADDON_CONFIG_FILE) {
+            serde_json::from_reader(file).ok()
+        } else {
+            None
+        }
     }
 }

src/wasm/src/sentry_gauge.rs

@@ -255,12 +255,14 @@ where
             ..Default::default()
         }));
 
-        if let Ok(config) = Config::get_config() {
-            scope.set_tag(
-                "addon",
-                format!("{}/{}", config.addon.developer, config.addon.product),
-            );
-        }
+        scope.set_tag(
+            "addon",
+            if let Some(config) = Config::get_config() {
+                format!("{}/{}", config.addon.developer, config.addon.product)
+            } else {
+                "Unknown".into()
+            },
+        );
     });
 
     // Drain any pending reports. We need to structure it like this as opposed to just a top level `let Ok(state) = ...`` due to the fact we should not be holding a MutexGuard across an await point