Update HTML code style

Signed-off-by: Graham <gpe@openrs2.org>

.idea/codeStyles/Project.xml

@@ -8,6 +8,7 @@
     </option>
     <option name="FORMATTER_TAGS_ENABLED" value="true" />
     <HTMLCodeStyleSettings>
+      <option name="HTML_SPACE_INSIDE_EMPTY_TAG" value="true" />
       <option name="HTML_DO_NOT_INDENT_CHILDREN_OF" value="" />
     </HTMLCodeStyleSettings>
     <JavaCodeStyleSettings>
@@ -55,6 +56,13 @@
       <option name="XML_ALIGN_ATTRIBUTES" value="false" />
       <option name="XML_SPACE_INSIDE_EMPTY_TAG" value="true" />
     </XML>
+    <codeStyleSettings language="HTML">
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
     <codeStyleSettings language="JAVA">
       <option name="KEEP_FIRST_COLUMN_COMMENT" value="false" />
       <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false" />