Color changes, fix login password box

- type=password was on the wrong element
- New color assignments for tables
- Only uses one palette for now
- Changed input bg to highlight color
- Forced dark mode on sidebar
- Moved some table coloring to components.css
- Fixed some comments being out-of-line

client/src/components/NiceTable.vue

@@ -144,10 +144,6 @@ function dragDropRow() {
 </template>
 
 <style scoped>
-.selected {
-  background-color: red;
-}
-
 .dragged-over-before {
   border-top: 0.25rem solid var(--cl-fg);
 }