Dark mode optimizations for Query Log and Long-term graphics

Signed-off-by: DL6ER <dl6er@dl6er.de>

style/themes/default-light.css

@@ -171,3 +171,32 @@
 .progress {
   background-color: #eee;
 }
+
+/* Used in the Query Log table */
+.text-black {
+  color: #000 !important;
+}
+
+.text-green-light {
+  color: #7fff00 !important;
+}
+
+.text-green {
+  color: #080 !important;
+}
+
+.text-orange {
+  color: #ffa500 !important;
+}
+
+.text-red {
+  color: #f00 !important;
+}
+
+.text-vivid-blue {
+  color: #36f !important;
+}
+
+td.highlight {
+  background-color: #ff0 !important;
+}