Fix typos in log messages

Several of the log messages contained minor typos.

arduino-ide-extension/src/browser/contributions/compiler-errors.ts

@@ -743,7 +743,7 @@ export class CompilerErrors
     }
     console.warn(
       'compiler-errors',
-      `could not found editor widget for URI: ${uri}`
+      `could not find editor widget for URI: ${uri}`
     );
     return undefined;
   }