fix(linter): fixed false positive on H037

closes #679

package.json

@@ -10,6 +10,7 @@
     "type": "git",
     "url": "git+https://github.com/Riverside-Healthcare/djLint.git"
   },
+  "files": [],
   "keywords": [
     "html template linter",
     "html template formatter",

src/djlint/rules.yaml

@@ -276,4 +276,4 @@
     message: Duplicate attribute found.
     flags: re.I
     patterns:
-    - <\w[^>]*?\s\K([a-z-:][a-z-]*?)(?==(?:\"[^\"]*\"|'[^']*'|{{(?:(?!}}).)*}}|{%(?:(?!%}).)*%}|{#(?:(?!#}).)*#}|[^'\">{}])*[^-:]\1=[^>]*?>)
+    - <\w[^>]*?\s\K([a-z-:][a-z-]*?)(?==(?:\"[^\"]*\"|'[^']*'|{{(?:(?!}}).)*}}|{%(?:(?!%}).)*%}|{#(?:(?!#}).)*#}|[^'\">{}])*[^-:a-z]\1=[^>]*?>)

tests/test_linter/test_h037.py

@@ -41,6 +41,11 @@
         ([]),
         id="mismatch names",
     ),
+    pytest.param(
+        ('<rect x="2" y="3" rx="1" />'),
+        ([]),
+        id="substring names",
+    ),
     pytest.param(
         ('<svg -width="16" -width="2"></svg>'),
         (