[Backport 1.27] Rework desktop install / startup UX (#5292)

## Summary

Backporting #5292 to core/1.27 branch to fix desktop installation and
startup UX issues.

## What's Changed

This is a manual backport of commit
b0f81b2 which reworks the desktop
install and startup user experience.

### Merge Conflicts Resolved

The automatic backport failed with conflicts in:
- `src/components/install/GpuPicker.vue` - Resolved by keeping the
changes made in the PR
- `src/components/install/MirrorsConfiguration.vue` - Resolved by
keeping the file deletion from the PR
- `src/components/install/mirror/MirrorItem.vue` - Resolved by
combination merge (all changes)
- `src/views/ServerStartView.vue` - Resolved by combination merge (all
changes)

## Original PR

- PR: #5292 
- Commit: b0f81b2
- Title: Rework desktop install / startup UX

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5756-Backport-1-27-Rework-desktop-install-startup-UX-5292-2786d73d365081668f4dc16694c51185)
by [Unito](https://www.unito.io)

Author: webfiltered

public/assets/images/comfy-brand-mark.svg

@@ -1,5 +1,8 @@
 <template>
-  <div ref="rootEl" class="relative overflow-hidden h-full w-full bg-black">
+  <div
+    ref="rootEl"
+    class="relative overflow-hidden h-full w-full bg-neutral-900"
+  >
     <div class="p-terminal rounded-none h-full w-full p-2">
       <div ref="terminalEl" class="h-full terminal-host" />
     </div>
@@ -97,12 +100,13 @@ onUnmounted(() => {
 </script>
 
 <style scoped>
+@reference '../../../../assets/css/style.css';
+
 :deep(.p-terminal) .xterm {
-  overflow-x: auto;
+  @apply overflow-hidden;
 }
 
 :deep(.p-terminal) .xterm-screen {
-  background-color: black;
-  overflow-y: hidden;
+  @apply bg-neutral-900 overflow-hidden;
 }
 </style>

public/assets/images/nvidia-logo-square.jpg

@@ -0,0 +1,71 @@
+<template>
+  <div :class="wrapperClass">
+    <div class="grid grid-rows-2 gap-8">
+      <!-- Top container: Logo -->
+      <div class="flex items-end justify-center">
+        <img
+          src="/assets/images/comfy-brand-mark.svg"
+          :alt="t('g.logoAlt')"
+          class="w-60"
+        />
+      </div>
+      <!-- Bottom container: Progress and text -->
+      <div class="flex flex-col items-center justify-center gap-4">
+        <ProgressBar
+          v-if="!hideProgress"
+          :mode="progressMode"
+          :value="progressPercentage ?? 0"
+          :show-value="false"
+          class="w-90 h-2 mt-8"
+          :pt="{ value: { class: 'bg-brand-yellow' } }"
+        />
+        <h1 v-if="title" class="font-inter font-bold text-3xl text-neutral-300">
+          {{ title }}
+        </h1>
+        <p v-if="statusText" class="text-lg text-neutral-400">
+          {{ statusText }}
+        </p>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import ProgressBar from 'primevue/progressbar'
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+const { t } = useI18n()
+
+/** Props for the StartupDisplay component */
+interface StartupDisplayProps {
+  /** Progress: 0-100 for determinate, undefined for indeterminate */
+  progressPercentage?: number
+  /** Main title text */
+  title?: string
+  /** Status text shown below the title */
+  statusText?: string
+  /** Hide the progress bar */
+  hideProgress?: boolean
+  /** Use full screen wrapper (default: true) */
+  fullScreen?: boolean
+}
+
+const {
+  progressPercentage,
+  title,
+  statusText,
+  hideProgress = false,
+  fullScreen = true
+} = defineProps<StartupDisplayProps>()
+
+const progressMode = computed(() =>
+  progressPercentage === undefined ? 'indeterminate' : 'determinate'
+)
+
+const wrapperClass = computed(() =>
+  fullScreen
+    ? 'flex items-center justify-center min-h-screen'
+    : 'flex items-center justify-center'
+)
+</script>

src/components/bottomPanel/tabs/terminal/BaseTerminal.vue

@@ -10,14 +10,14 @@
       </p>
     </div>
 
-    <div class="flex flex-col bg-neutral-800 p-4 rounded-lg">
+    <div class="flex flex-col bg-neutral-800 p-4 rounded-lg text-sm">
       <!-- Auto Update Setting -->
       <div class="flex items-center gap-4">
         <div class="flex-1">
           <h3 class="text-lg font-medium text-neutral-100">
             {{ $t('install.settings.autoUpdate') }}
           </h3>
-          <p class="text-sm text-neutral-400 mt-1">
+          <p class="text-neutral-400 mt-1">
             {{ $t('install.settings.autoUpdateDescription') }}
           </p>
         </div>
@@ -32,14 +32,10 @@
           <h3 class="text-lg font-medium text-neutral-100">
             {{ $t('install.settings.allowMetrics') }}
           </h3>
-          <p class="text-sm text-neutral-400 mt-1">
+          <p class="text-neutral-400">
             {{ $t('install.settings.allowMetricsDescription') }}
           </p>
-          <a
-            href="#"
-            class="text-sm text-blue-400 hover:text-blue-300 mt-1 inline-block"
-            @click.prevent="showMetricsInfo"
-          >
+          <a href="#" @click.prevent="showMetricsInfo">
             {{ $t('install.settings.learnMoreAboutData') }}
           </a>
         </div>
@@ -51,7 +47,9 @@
     <Dialog
       v-model:visible="showDialog"
       modal
+      dismissable-mask
       :header="$t('install.settings.dataCollectionDialog.title')"
+      class="select-none"
     >
       <div class="text-neutral-300">
         <h4 class="font-medium mb-2">
@@ -110,11 +108,7 @@
         </ul>
 
         <div class="mt-4">
-          <a
-            href="https://comfy.org/privacy"
-            target="_blank"
-            class="text-blue-400 hover:text-blue-300 underline"
-          >
+          <a href="https://comfy.org/privacy" target="_blank">
             {{ $t('install.settings.dataCollectionDialog.viewFullPolicy') }}
           </a>
         </div>