Fix missing template for follow button in organization (#29215)

Leftover from https://github.com/go-gitea/gitea/pull/29005

# Before

![before](https://github.com/go-gitea/gitea/assets/20454870/24c74278-ccac-4dc6-bf26-713e90c07239)

# After

![after](https://github.com/go-gitea/gitea/assets/20454870/f91d503b-87d4-4c17-a56c-9c0a81fd9082)

---------

Signed-off-by: Yarden Shoham <git@yardenshoham.com>

routers/web/user/profile.go

@@ -29,7 +29,7 @@ import (
 
 const (
 	tplProfileBigAvatar base.TplName = "shared/user/profile_big_avatar"
-	tplFollowUnfollow   base.TplName = "shared/user/follow_unfollow"
+	tplFollowUnfollow   base.TplName = "org/follow_unfollow"
 )
 
 // OwnerProfile render profile page for a user or a organization (aka, repo owner)

templates/org/follow_unfollow.tmpl

@@ -0,0 +1,7 @@
+<button class="ui basic button gt-mr-0" hx-post="{{.Org.HomeLink}}?action={{if $.IsFollowing}}unfollow{{else}}follow{{end}}">
+	{{if $.IsFollowing}}
+		{{ctx.Locale.Tr "user.unfollow"}}
+	{{else}}
+		{{ctx.Locale.Tr "user.follow"}}
+	{{end}}
+</button>

templates/org/home.tmpl

@@ -26,13 +26,7 @@
 			</a>
 			{{end}}
 			{{if .IsSigned}}
-				<button class="ui basic button gt-mr-0" hx-post="{{.Org.HomeLink}}?action={{if $.IsFollowing}}unfollow{{else}}follow{{end}}">
-					{{if $.IsFollowing}}
-						{{ctx.Locale.Tr "user.unfollow"}}
-					{{else}}
-						{{ctx.Locale.Tr "user.follow"}}
-					{{end}}
-				</button>
+				{{template "org/follow_unfollow" .}}
 			{{end}}
 		</div>
 	</div>