🔇 fix: Hide Button Icons from Screen Readers (#10776)

If you've got a screen reader that is reading out the whole page,
each icon button (i.e., `<button><SVG></button>`) will have both
the button's aria-label read out as well as the title from the
SVG (which is usually just "image").

Since we are pretty good about setting aria-labels, we should instead
use `aria-hidden="true"` on these images, since they are not useful
to be read out.

I don't consider this a comprehensive review of all icons in the app,
but I knocked out all the low hanging fruit in this commit.

client/src/components/Prompts/PromptForm.tsx

@@ -130,7 +130,7 @@ const RightPanel = React.memo(
                   !canEdit
                 }
               >
-                <Rocket className="size-5 cursor-pointer text-white" />
+                <Rocket className="size-5 cursor-pointer text-white" aria-hidden="true" />
               </Button>
             )}
             <DeleteVersion
@@ -422,7 +422,7 @@ const PromptForm = () => {
                         onClick={() => setShowSidePanel(true)}
                         aria-label={localize('com_endpoint_open_menu')}
                       >
-                        <Menu className="size-5" />
+                        <Menu className="size-5" aria-hidden="true" />
                       </Button>
                       <div className="hidden lg:block">
                         {editorMode === PromptsEditorMode.SIMPLE && (