fix: Disable custom context menu on img tags (#11762)

# Pull Request Template

## Description

Fixes #11761. See the issue for the details.

## Type of change

Please delete options that are not relevant.

- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality not to work as expected)
- [ ] This change requires a documentation update

## How Has This Been Tested?

I deployed a modified version of Chatwoot with this patch and tested.

## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [x] I have made corresponding changes to the documentation (not
applicable)
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works (not sure how to do this)
- [x] New and existing unit tests pass locally with my changes
- [x] Any dependent changes have been merged and published in downstream
modules

---------

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/dashboard/components-next/message/Message.vue

@@ -379,7 +379,7 @@ const shouldRenderMessage = computed(() => {
 function openContextMenu(e) {
   const shouldSkipContextMenu =
     e.target?.classList.contains('skip-context-menu') ||
-    e.target?.tagName.toLowerCase() === 'a';
+    ['a', 'img'].includes(e.target?.tagName.toLowerCase());
   if (shouldSkipContextMenu || getSelection().toString()) {
     return;
   }