Refactor text utility classes to Tailwind CSS (#36703)

Replace Fomantic/custom CSS text utility classes with their Tailwind
equivalents:

- `.text.<color>` compound classes → `tw-text-<color>` classes
- `.text.small` (`font-size: 0.75em`) → `tw-text-xs` (11px)
- `.text.truncate` (`overflow-x: hidden; text-overflow: ellipsis;
white-space: nowrap; display: inline-block`) → `tw-inline-block
tw-truncate`

Remove the now-unused CSS rules from `base.css` and `dashboard.css`.

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

templates/org/settings/options_dangerzone.tmpl

@@ -87,7 +87,7 @@
 			<div class="field">
 				<label>
 					{{ctx.Locale.Tr "org.settings.name_confirm"}}
-					<span class="text red">{{.Org.Name}}</span>
+					<span class="tw-text-red">{{.Org.Name}}</span>
 				</label>
 			</div>
 			<div class="required field">
@@ -125,7 +125,7 @@
 			<div class="field">
 				<label>
 					{{ctx.Locale.Tr "org.settings.name_confirm"}}
-					<span class="text red">{{.Org.Name}}</span>
+					<span class="tw-text-red">{{.Org.Name}}</span>
 				</label>
 			</div>
 			<div class="required field">