fix: resolve all WCAG 2.1 violations in demo/broken.html and bump version to 3.0.2

- Added lang attribute to html element (WCAG 3.1.1)
- Added descriptive page title (WCAG 2.4.2)
- Added alt attributes to all images (WCAG 1.1.1)
- Removed redundant alt text words (WCAG 1.1.1)
- Fixed empty link and button with discernible text (WCAG 2.4.4, 4.1.2)
- Removed positive tabindex value (WCAG 2.4.3)
- Eliminated duplicate id=main-content (WCAG 4.1.1)
- Fixed insufficient color contrast ratio (WCAG 1.4.3)
- Replaced invalid ARIA role cool-widget with region (WCAG 4.1.2)
- Added title attribute to iframe (WCAG 4.1.2)
- Replaced generic link texts with descriptive ones (WCAG 2.4.4)
- Added associated label for placeholder-only input (WCAG 3.3.2)
- Removed aria-hidden from focusable elements (WCAG 4.1.2)
- Added non-empty heading text (WCAG 2.4.6)
- Added video captions track element (WCAG 1.2.2)
- Added non-empty label text (WCAG 1.3.1)
- Added tabindex=0 to role=button div (WCAG 2.1.1)

composer.json

@@ -12,7 +12,7 @@
         "yaknet"
     ],
     "homepage": "https://forum.yak.net.tr",
-    "version": "3.0.1",
+    "version": "3.0.2",
     "type": "library",
     "license": "MIT",
     "authors": [