Add build info to specs page

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

src/js/store.js

@@ -5,6 +5,7 @@ const state = reactive({
     enabledRegions: ['thorax','abdomen','limbs','head'],
     regionIconSet: Math.floor(Math.random() * 3) + 1,
     version: '0.5.0-alpha',
+    build: '####',
     fullscreen: false,
     useExternal: 'optional',
     workersEnabled: 'true',
@@ -54,6 +55,7 @@ export default () => ({
   useWorkers: computed(() => state.workersEnabled),
   getRegions: computed(() => state.enabledRegions),
   getVersion: computed(() => state.version),
+  getBuild: computed(() => state.build),
   getIconSet: computed(() => state.regionIconSet),
   getInfoUrl: computed(() => state.infoUrl),
   set,