Fix various typos (#8748)

src/cli/DatabaseCreate.cpp

@@ -149,7 +149,7 @@ QSharedPointer<Database> DatabaseCreate::initializeDatabaseFromOptions(const QSh
  * If a key file is specified but it can't be loaded, the function will
  * fail.
  *
- * If the database is being saved in a non existant directory, the
+ * If the database is being saved in a non existent directory, the
  * function will fail.
  *
  * @return EXIT_SUCCESS on success, or EXIT_FAILURE on failure

src/cli/Import.cpp

@@ -28,7 +28,7 @@
  * A password can be specified to encrypt the database.
  * If none is specified the function will fail.
  *
- * If the database is being saved in a non existant directory, the
+ * If the database is being saved in a non existent directory, the
  * function will fail.
  *
  * @return EXIT_SUCCESS on success, or EXIT_FAILURE on failure

src/cli/Utils.cpp

@@ -413,7 +413,7 @@ namespace Utils
      *
      * @param path Path to the key file to be loaded
      * @param fileKey Resulting fileKey
-     * @return true if the key file was loaded succesfully
+     * @return true if the key file was loaded successfully
      */
     bool loadFileKey(const QString& path, QSharedPointer<FileKey>& fileKey)
     {