fix: Add strict override and import rules + ordering

Author: LHerskind

.solhint.json

@@ -12,6 +12,9 @@
     "private-vars-no-leading-underscore": ["warn"],
     "func-param-name-leading-underscore": ["warn"],
     "func-param-name-mixedcase": ["warn"],
-    "custom-error-over-require": ["warn"]
+    "custom-error-over-require": ["warn"],
+    "strict-override": ["warn"],
+    "strict-import": ["warn"],
+    "ordering": ["warn"]
   }
 }