Expand "Go to File" button again, fix 'Add File' margin (#21543)

With https://github.com/go-gitea/gitea/pull/21428 we gained some space
so we are again able to show the "Go to File" button as text instead of
icon-only (the old icon was not particularily fitting anyways).

Before:
<img width="328" alt="image"
src="https://user-images.githubusercontent.com/115237/197334423-07731d9d-bf26-4aeb-95fa-490d9d0bf2a2.png">

After:
<img width="339" alt="Screen Shot 2022-10-22 at 12 28 01"
src="https://user-images.githubusercontent.com/115237/197334383-467c4107-09c9-4881-b75f-7f403eab7f3a.png">
<img width="413" alt="Screen Shot 2022-10-22 at 12 28 16"
src="https://user-images.githubusercontent.com/115237/197334384-f7d1fdda-a011-4138-ad1e-b52fc987501f.png">

templates/repo/home.tmpl

@@ -74,7 +74,7 @@
 							<button id="new-pull-request" class="ui compact basic button tooltip" data-content="{{if .PullRequestCtx.Allowed}}{{.locale.Tr "repo.pulls.compare_changes"}}{{else}}{{.locale.Tr "action.compare_branch"}}{{end}}"><span class="text">{{svg "octicon-git-pull-request"}}</span></button>
 						</a>
 					{{end}}
-					<a href="{{.Repository.Link}}/find/{{.BranchNameSubURL}}" class="ui compact basic button tooltip" data-content="{{.locale.Tr "repo.find_file.go_to_file"}}">{{svg "octicon-file-moved" 15}}</a>
+					<a href="{{.Repository.Link}}/find/{{.BranchNameSubURL}}" class="ui compact basic button">{{.locale.Tr "repo.find_file.go_to_file"}}</a>
 				{{end}}
 				{{if or .CanAddFile .CanUploadFile}}
 					<button class="ui basic small compact dropdown jump icon button mr-2"{{if not .Repository.CanEnableEditor}} disabled{{end}}>

web_src/less/_repository.less

@@ -2804,6 +2804,11 @@
   margin-top: 10px;
 }
 
+.repo-button-row .dropdown > .dropdown.icon {
+  margin-left: .25rem !important;
+  margin-right: 0 !important;
+}
+
 .wiki .repo-button-row {
   margin-bottom: 0;
 }