## Description
When selecting a display picture, show alert on selecting invalid file
type.
e.g. when you rename a pdf file to png and try to upload it
Design system changes:
https://github.com/appsmithorg/design-system/pull/466Fixes#22592
Media
https://www.loom.com/share/f8971769aaad422fb86c6b02306102ce
## Type of change
- Bug fix (non-breaking change which fixes an issue)
## How Has This Been Tested?
- Cypress
- Manual
### Test Plan
> Add Testsmith test cases links that relate to this PR
### Issues raised during DP testing
> Link issues raised during DP testing for better visiblity and tracking
(copy link from comments dropped on this PR)
## Checklist:
### Dev activity
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] PR is being merged under a feature flag
### QA activity:
- [ ] Test plan has been approved by relevant developers
- [ ] Test plan has been peer reviewed by QA
- [ ] Cypress test cases have been added and approved by either SDET or
manual QA
- [ ] Organized project review call with relevant stakeholders after
Round 1/2 of QA
- [ ] Added Test Plan Approved label after reveiwing all Cypress test
bd2cc8d612