Fix button size in "attached header right" (go-gitea#28770)

Before:

<details>


![image](https://github.com/go-gitea/gitea/assets/2114189/c82f8615-04d4-408f-95bf-689c227a8814)



![image](https://github.com/go-gitea/gitea/assets/2114189/d01d05a7-09ca-48f3-a0e7-fec48119b426)

</details>

After:



![image](https://github.com/go-gitea/gitea/assets/2114189/e560398e-2fa4-4f46-9229-f6acc70e32ab)


![image](https://github.com/go-gitea/gitea/assets/2114189/bd18961d-0636-4584-b893-c465daaf40af)

Author: wxiaoguang

templates/org/team/teams.tmpl

@@ -26,7 +26,7 @@
 							{{else if $.IsOrganizationOwner}}
 								<form method="post" action="{{$.OrgLink}}/teams/{{.LowerName | PathEscape}}/action/join">
 									{{$.CsrfTokenHtml}}
-									<button type="submit" class="ui primary small button" name="uid" value="{{$.SignedUser.ID}}">{{ctx.Locale.Tr "org.teams.join"}}</button>
+									<button type="submit" class="ui primary tiny button" name="uid" value="{{$.SignedUser.ID}}">{{ctx.Locale.Tr "org.teams.join"}}</button>
 								</form>
 							{{end}}
 						</div>

templates/repo/settings/lfs_file.tmpl

@@ -5,10 +5,10 @@
 				<a href="{{.LFSFilesLink}}">{{ctx.Locale.Tr "repo.settings.lfs"}}</a> / <span class="truncate sha">{{.LFSFile.Oid}}</span>
 				<div class="ui right">
 					{{if .EscapeStatus.Escaped}}
-						<a class="ui mini basic button unescape-button gt-hidden">{{ctx.Locale.Tr "repo.unescape_control_characters"}}</a>
-						<a class="ui mini basic button escape-button">{{ctx.Locale.Tr "repo.escape_control_characters"}}</a>
+						<a class="ui tiny basic button unescape-button gt-hidden">{{ctx.Locale.Tr "repo.unescape_control_characters"}}</a>
+						<a class="ui tiny basic button escape-button">{{ctx.Locale.Tr "repo.escape_control_characters"}}</a>
 					{{end}}
-					<a class="ui primary button" href="{{.LFSFilesLink}}/find?oid={{.LFSFile.Oid}}&size={{.LFSFile.Size}}">{{ctx.Locale.Tr "repo.settings.lfs_findcommits"}}</a>
+					<a class="ui primary tiny button" href="{{.LFSFilesLink}}/find?oid={{.LFSFile.Oid}}&size={{.LFSFile.Size}}">{{ctx.Locale.Tr "repo.settings.lfs_findcommits"}}</a>
 				</div>
 			</h4>
 			<div class="ui attached table unstackable segment">

templates/repo/settings/lfs_pointers.tmpl

@@ -11,7 +11,7 @@
 								<input type="hidden" name="oid" value="{{.Oid}} {{.Size}}">
 							{{end}}
 						{{end}}
-						<button class="ui primary button">{{ctx.Locale.Tr "repo.settings.lfs_pointers.associateAccessible" $.NumAssociatable}}</button>
+						<button class="ui primary tiny button">{{ctx.Locale.Tr "repo.settings.lfs_pointers.associateAccessible" $.NumAssociatable}}</button>
 					</form>
 				</div>
 			{{end}}

web_src/css/base.css

@@ -1764,11 +1764,12 @@ a.ui.basic.label:hover {
   bottom: 0;
   display: flex;
   align-items: center;
+  gap: 0.25em;
 }
 
-.ui.attached.header > .ui.right > .button,
-.ui.attached.header > .ui.right > .dropdown > .button {
-  padding: 8px 10px;
+/* the default ".ui.attached.header > .ui.right" is only able to contain "tiny" buttons, other buttons are too large */
+.ui.attached.header > .ui.right .ui.tiny.button {
+  padding: 6px 10px;
   font-weight: var(--font-weight-normal);
 }