Backport: Css token standardization (#6363) (#6669)

## Summary
Backports the CSS token standardization changes from PR #6363 to the
`core/1.30` branch.

Resolved merge conflict in `MediaTitle.vue` and added missing
`truncateFilename` function to maintain compatibility.

**Original PR**: https://github.com/Comfy-Org/ComfyUI_frontend/pull/6363
**Cherry-picked commit**: bde5244a71

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6669-Backport-Css-token-standardization-6363-2aa6d73d36508153be09cdc67f6ac8a4)
by [Unito](https://www.unito.io)

src/components/custom/widget/WorkflowTemplateSelectorDialog.vue

@@ -144,7 +144,7 @@
             size="compact"
             variant="ghost"
             rounded="lg"
-            class="hover:bg-white dark-theme:hover:bg-zinc-800"
+            class="hover:bg-base-background"
           >
             <template #top>
               <CardTop ratio="landscape">
@@ -178,7 +178,7 @@
             variant="ghost"
             rounded="lg"
             :data-testid="`template-workflow-${template.name}`"
-            class="hover:bg-white dark-theme:hover:bg-zinc-800"
+            class="hover:bg-base-background"
             @mouseenter="hoveredTemplate = template.name"
             @mouseleave="hoveredTemplate = null"
             @click="onLoadWorkflow(template)"
@@ -323,7 +323,7 @@
             size="compact"
             variant="ghost"
             rounded="lg"
-            class="hover:bg-white dark-theme:hover:bg-zinc-800"
+            class="hover:bg-base-background"
           >
             <template #top>
               <CardTop ratio="square">

src/components/graph/selectionToolbox/BypassButton.test.ts

@@ -92,7 +92,7 @@ describe('BypassButton', () => {
     const button = wrapper.find('button')
 
     expect(button.classes()).not.toContain(
-      'dark-theme:[&:not(:active)]:!bg-[#262729]'
+      'dark-theme:[&:not(:active)]:!bg-charcoal-600'
     )
   })
 

src/components/graph/selectionToolbox/BypassButton.vue

@@ -7,7 +7,7 @@
     severity="secondary"
     text
     data-testid="bypass-button"
-    class="hover:bg-[#E7E6E6] hover:dark-theme:bg-charcoal-600"
+    class="hover:bg-secondary-background"
     @click="toggleBypass"
   >
     <template #icon>

src/components/graph/selectionToolbox/ExecuteButton.vue

@@ -4,7 +4,7 @@
       value: t('selectionToolbox.executeButton.tooltip'),
       showDelay: 1000
     }"
-    class="size-8 bg-[#31B9F4] !p-0 dark-theme:bg-[#0B8CE9]"
+    class="size-8 bg-azure-400 !p-0 dark-theme:bg-azure-600"
     text
     @mouseenter="() => handleMouseEnter()"
     @mouseleave="() => handleMouseLeave()"

src/components/graph/selectionToolbox/MenuOptionItem.vue

@@ -27,9 +27,9 @@
       :severity="option.badge === 'new' ? 'info' : 'secondary'"
       :value="t(option.badge)"
       :class="{
-        'rounded-4xl bg-[#31B9F4] dark-theme:bg-[#0B8CE9]':
+        'rounded-4xl bg-azure-400 dark-theme:bg-azure-600':
           option.badge === 'new',
-        'rounded-4xl bg-[#9C9EAB] dark-theme:bg-[#000]':
+        'rounded-4xl bg-slate-100 dark-theme:bg-black':
           option.badge === 'deprecated',
         'h-4 gap-2.5 px-1 text-[9px] text-white uppercase': true
       }"