Swap out primary UI color for Zoo brand blue, add theme color setting to control its hue (#2017)

* Add a setting for themeColor

* Add primary-color to Tailwind, driven by themeColor setting

* Get rid of most uses of "energy" colors

* Change out the rest of the energy colors

* Tweak NetworkHealthIndicator light mode checkmarks

* Handful of other CSS tweaks while I'm here:
- remove the AppHeader bg and border
- pane margins
- better dark mode button styles

* Make Zoo logomark a badge

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* Re-run CI post-snapshots

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* Retrigger CI

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/components/CodeMenu.module.css

@@ -1,13 +1,13 @@
 .button {
   @apply flex justify-between items-center gap-2 px-2 py-1 text-left border-none rounded-sm;
   @apply font-mono !no-underline text-xs font-bold select-none text-chalkboard-90;
-  @apply ui-active:bg-energy-10/50 ui-active:text-inherit;
+  @apply ui-active:bg-primary/10 ui-active:text-primary ui-active:text-inherit;
   @apply transition-colors ease-out;
 }
 
 :global(.dark) .button {
-  @apply text-chalkboard-30;
-  @apply ui-active:bg-chalkboard-80 ui-active:text-energy-10;
+  @apply !text-chalkboard-30;
+  @apply ui-active:bg-chalkboard-90;
 }
 
 .button small {