fix: view debug, css selector error

Author: rob2468

Classes/Handler/HSDRequestHandler.m

@@ -211,7 +211,9 @@ + (HSDGWebServerResponse *)handleRequest:(HSDGWebServerRequest *)request {
         response = [[HSDGWebServerDataResponse alloc] initWithHTML:htmlStr];
     } else {
         NSString *documentPath = [documentRoot stringByAppendingPathComponent:path];
-        response = [[HSDGWebServerFileResponse alloc] initWithFile:documentPath];
+        if ([[NSFileManager defaultManager] fileExistsAtPath:documentPath]) {
+            response = [[HSDGWebServerFileResponse alloc] initWithFile:documentPath];
+        }
     }
 
     if (!response) {

Resources/HttpServerDebug.bundle/web/pages/view_debug/view_debug.css

@@ -94,10 +94,10 @@ div.view-hierarchy-area {
   padding-left: 4px;
   display: inline-block;
 }
-#view-property-list ul {
+.view-property-list ul {
   padding: 0;
 }
-#view-property-list img {
+.view-property-list img {
   width: 75%;
   margin-left: auto;
   margin-right: auto;