Split CompanyController and introduce standalone User Settings page

Backend:
- Extract user profile methods (show, update, uploadAvatar) from
  CompanyController into new UserProfileController
- CompanyController now only handles company concerns (updateCompany,
  uploadCompanyLogo)
- Remove Account Settings from setting_menu config

Frontend:
- New /admin/user-settings page with 3 tabs: General, Profile Photo,
  Security (password change)
- User dropdown now links to /admin/user-settings instead of
  /admin/settings/account-settings
- Settings sidebar defaults to Company Information as first item
- Remove old monolithic AccountSetting.vue

resources/scripts/admin/views/user-settings/UserSettingsIndex.vue

@@ -0,0 +1,47 @@
+<template>
+  <BasePage>
+    <BasePageHeader :title="$t('settings.account_settings.account_settings')">
+      <template #actions>
+        <router-link to="/admin/settings">
+          <BaseButton variant="primary-outline">
+            <template #left="slotProps">
+              <BaseIcon name="CogIcon" :class="slotProps.class" />
+            </template>
+            {{ $t('navigation.settings') }}
+          </BaseButton>
+        </router-link>
+      </template>
+    </BasePageHeader>
+
+    <BaseCard container-class="px-4 py-5 sm:px-8 sm:py-2">
+      <BaseTabGroup>
+        <BaseTab
+          tab-panel-container="py-4 mt-px"
+          :title="$t('settings.account_settings.general')"
+        >
+          <GeneralTab />
+        </BaseTab>
+
+        <BaseTab
+          tab-panel-container="py-4 mt-px"
+          :title="$t('settings.account_settings.profile_picture')"
+        >
+          <ProfilePhotoTab />
+        </BaseTab>
+
+        <BaseTab
+          tab-panel-container="py-4 mt-px"
+          :title="$t('settings.account_settings.security')"
+        >
+          <SecurityTab />
+        </BaseTab>
+      </BaseTabGroup>
+    </BaseCard>
+  </BasePage>
+</template>
+
+<script setup>
+import GeneralTab from './GeneralTab.vue'
+import ProfilePhotoTab from './ProfilePhotoTab.vue'
+import SecurityTab from './SecurityTab.vue'
+</script>