Migrate font-size helpers to tailwind (#30029)

Migrate `gt-font-*` to `tw-text-*` All tailwind-original class names are
also available and render like they would with 16px root font size.

We currently have root font size at 14px, but I would like to eventually
migrate us to 16px so that the tailwind docs apply to us unchangend and
because 16px is the recommended root font size for web pages in general.
Also the number 16 is much better dividable than 14 so will result in
more integers.

tailwind.config.js

@@ -73,5 +73,23 @@ export default {
       semibold: 'var(--font-weight-semibold)',
       bold: 'var(--font-weight-bold)',
     },
+    fontSize: { // not using `rem` units because our root is currently 14px
+      'xs': '12px',
+      'sm': '14px',
+      'base': '16px',
+      'lg': '18px',
+      'xl': '20px',
+      '2xl': '24px',
+      '3xl': '30px',
+      '4xl': '36px',
+      '5xl': '48px',
+      '6xl': '60px',
+      '7xl': '72px',
+      '8xl': '96px',
+      '9xl': '128px',
+      ...Object.fromEntries(Array.from({length: 100}, (_, i) => {
+        return [`${i}`, `${i === 0 ? '0' : `${i}px`}`];
+      })),
+    },
   },
 };

templates/org/header.tmpl

@@ -7,7 +7,7 @@
 				{{if .Org.Visibility.IsLimited}}<span class="ui large basic horizontal label">{{ctx.Locale.Tr "org.settings.visibility.limited_shortname"}}</span>{{end}}
 				{{if .Org.Visibility.IsPrivate}}<span class="ui large basic horizontal label">{{ctx.Locale.Tr "org.settings.visibility.private_shortname"}}</span>{{end}}
 			</span>
-			<span class="tw-flex tw-items-center gt-gap-2 tw-ml-auto gt-font-16 tw-whitespace-nowrap">
+			<span class="tw-flex tw-items-center gt-gap-2 tw-ml-auto tw-text-16 tw-whitespace-nowrap">
 				{{if .EnableFeed}}
 					<a class="ui basic label button gt-mr-0" href="{{.Org.HomeLink}}.rss" data-tooltip-content="{{ctx.Locale.Tr "rss_feed"}}">
 						{{svg "octicon-rss" 24}}

templates/repo/header.tmpl

@@ -7,7 +7,7 @@
 					{{template "repo/icon" .}}
 				</div>
 				<div class="flex-item-main">
-					<div class="flex-item-title gt-font-18">
+					<div class="flex-item-title tw-text-18">
 						<a class="muted tw-font-normal" href="{{.Owner.HomeLink}}">{{.Owner.Name}}</a>/<a class="muted" href="{{$.RepoLink}}">{{.Name}}</a>
 					</div>
 				</div>

templates/repo/home.tmpl

@@ -6,7 +6,7 @@
 		{{template "repo/code/recently_pushed_new_branches" .}}
 		{{if and (not .HideRepoInfo) (not .IsBlame)}}
 		<div class="ui repo-description gt-word-break">
-			<div id="repo-desc" class="gt-font-16">
+			<div id="repo-desc" class="tw-text-16">
 				{{$description := .Repository.DescriptionHTML $.Context}}
 				{{if $description}}<span class="description">{{$description | RenderCodeBlock}}</span>{{else if .IsRepositoryAdmin}}<span class="no-description text-italic">{{ctx.Locale.Tr "repo.no_desc"}}</span>{{end}}
 				<a class="link" href="{{.Repository.Website}}">{{.Repository.Website}}</a>
@@ -29,7 +29,7 @@
 		</div>
 		<div class="tw-flex tw-items-center tw-flex-wrap gt-gap-2" id="repo-topics">
 			{{range .Topics}}<a class="ui repo-topic large label topic gt-m-0" href="{{AppSubUrl}}/explore/repos?q={{.Name}}&topic=1">{{.Name}}</a>{{end}}
-			{{if and .Permission.IsAdmin (not .Repository.IsArchived)}}<button id="manage_topic" class="btn interact-fg gt-font-12">{{ctx.Locale.Tr "repo.topic.manage_topics"}}</button>{{end}}
+			{{if and .Permission.IsAdmin (not .Repository.IsArchived)}}<button id="manage_topic" class="btn interact-fg tw-text-12">{{ctx.Locale.Tr "repo.topic.manage_topics"}}</button>{{end}}
 		</div>
 		{{end}}
 		{{if and .Permission.IsAdmin (not .Repository.IsArchived)}}

templates/user/dashboard/feeds.tmpl

@@ -107,7 +107,7 @@
 					<a href="{{.GetCommentLink ctx}}" class="text truncate issue title">{{(.GetIssueTitle ctx) | RenderEmoji $.Context | RenderCodeBlock}}</a>
 					{{$comment := index .GetIssueInfos 1}}
 					{{if $comment}}
-						<div class="markup gt-font-14">{{RenderMarkdownToHtml ctx $comment}}</div>
+						<div class="markup tw-text-14">{{RenderMarkdownToHtml ctx $comment}}</div>
 					{{end}}
 				{{else if .GetOpType.InActions "merge_pull_request"}}
 					<div class="flex-item-body text black">{{index .GetIssueInfos 1}}</div>

templates/user/notification/notification_div.tmpl

@@ -44,13 +44,13 @@
 								{{end}}
 							</div>
 							<a class="notifications-link tw-flex tw-flex-1 tw-flex-col silenced" href="{{.Link ctx}}">
-								<div class="notifications-top-row gt-font-13">
+								<div class="notifications-top-row tw-text-13">
 									{{.Repository.FullName}} {{if .Issue}}<span class="text light-3">#{{.Issue.Index}}</span>{{end}}
 									{{if eq .Status 3}}
 										{{svg "octicon-pin" 13 "text blue gt-mt-1 gt-ml-2"}}
 									{{end}}
 								</div>
-								<div class="notifications-bottom-row gt-font-16 gt-py-1">
+								<div class="notifications-bottom-row tw-text-16 gt-py-1">
 									<span class="issue-title">
 										{{if .Issue}}
 											{{.Issue.Title | RenderEmoji $.Context | RenderCodeBlock}}

web_src/css/helpers.css

@@ -163,14 +163,6 @@ Gitea's private styles use `g-` prefix.
 .gt-gap-y-4 { row-gap: 1rem !important; }
 .gt-gap-y-5 { row-gap: 2rem !important; }
 
-.gt-font-12 { font-size: 12px !important }
-.gt-font-13 { font-size: 13px !important }
-.gt-font-14 { font-size: 14px !important }
-.gt-font-15 { font-size: 15px !important }
-.gt-font-16 { font-size: 16px !important }
-.gt-font-17 { font-size: 17px !important }
-.gt-font-18 { font-size: 18px !important }
-
 /*
 gt-hidden must win all other "display: xxx !important" classes to get the chance to "hide" an element.
 do not use:

web_src/js/components/RepoContributors.vue

@@ -384,7 +384,7 @@ export default {
             <h4 v-else class="contributor-name">
               {{ contributor.name }}
             </h4>
-            <p class="gt-font-12 tw-flex gt-gap-2">
+            <p class="tw-text-12 tw-flex gt-gap-2">
               <strong v-if="contributor.total_commits">{{ contributor.total_commits.toLocaleString() }} {{ locale.contributionType.commits }}</strong>
               <strong v-if="contributor.total_additions" class="text green">{{ contributor.total_additions.toLocaleString() }}++ </strong>
               <strong v-if="contributor.total_deletions" class="text red">