Icon-only loading button is off-center
When using the loading button with the icon only, and no additional text, the icon is off-center and the button is wider than it should be:
This is due to the following code:
.gl-button.gl-button .gl-button-loading-indicator,
.gl-button.gl-button.btn-block .gl-button-loading-indicator,
.login-page input.gl-button.gl-button[type='submit'] .gl-button-loading-indicator {
margin-right: 0.25rem;
}
