Fix instance of color-only error indication on elements

[gcamacho079]

Description

• Use alert icon next to element title when it has validation errors

Resolves DEV-687

[linear[bot]]

DEV-687 When an image asset has a validation error, it's indicated via red text inside the entry form

Page Area:

Entry form

Issue Description:

When a field inside a selected element has a validation error, the validation error is only indicated on the element via the red text color.

Action:

Add an error symbol or other indicator that doesn't rely on the use of color alone

Screenshot/Code Snippet:

Screenshot showing the selected asset (inside the image matrix block, not the slideout) only indicates there's an error using red text.

Screen Shot 2022-06-02 at 2.10.16 PM.png

Resolves CMS-234