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/team/members.tmpl

@@ -45,7 +45,7 @@
 							</div>
 						{{else}}
 							<div class="flex-item">
-								<span class="text grey tw-italic">{{ctx.Locale.Tr "org.teams.members.none"}}</span>
+								<span class="tw-text-text-light tw-italic">{{ctx.Locale.Tr "org.teams.members.none"}}</span>
 							</div>
 						{{end}}
 					</div>

templates/org/team/repositories.tmpl

@@ -32,7 +32,7 @@
 									{{template "repo/icon" .}}
 								</div>
 								<div class="flex-item-main">
-									<a class="flex-item-title text primary" href="{{$.Org.HomeLink}}/{{.Name | PathEscape}}">
+									<a class="flex-item-title tw-text-primary" href="{{$.Org.HomeLink}}/{{.Name | PathEscape}}">
 										{{$.Org.Name}}/{{.Name}}
 									</a>
 								</div>
@@ -46,7 +46,7 @@
 							</div>
 						{{else}}
 							<div class="flex-item">
-								<span class="text grey tw-italic">{{ctx.Locale.Tr "org.teams.repos.none"}}</span>
+								<span class="tw-text-text-light tw-italic">{{ctx.Locale.Tr "org.teams.repos.none"}}</span>
 							</div>
 						{{end}}
 					</div>

templates/org/team/sidebar.tmpl

@@ -21,7 +21,7 @@
 			{{if .Team.Description}}
 				{{.Team.Description}}
 			{{else}}
-				<span class="text grey tw-italic">{{ctx.Locale.Tr "org.teams.no_desc"}}</span>
+				<span class="tw-text-text-light tw-italic">{{ctx.Locale.Tr "org.teams.no_desc"}}</span>
 			{{end}}
 		</div>
 		{{if eq .Team.LowerName "owners"}}

templates/org/team/teams.tmpl

@@ -14,7 +14,7 @@
 			{{range .Teams}}
 				<div class="column">
 					<div class="ui top attached header">
-						<a class="text black" href="{{$.OrgLink}}/teams/{{.LowerName | PathEscape}}"><strong>{{.Name}}</strong></a>
+						<a class="tw-text-text" href="{{$.OrgLink}}/teams/{{.LowerName | PathEscape}}"><strong>{{.Name}}</strong></a>
 						<div class="ui right">
 							<a class="ui primary tiny button" href="{{$.OrgLink}}/teams/{{.LowerName | PathEscape}}">{{ctx.Locale.Tr "view"}}</a>
 							{{if .IsMember ctx $.SignedUser.ID}}