Adjust style for action run list (align icons, adjust padding) (#25170)

Main changes:

- Moved the icon into `action-item-main`, and make it `position:
absolute` to allow add margin it to align with `issue-item-top-row`.
- Adjusted padding and color of texts.


# Before

<img width="721" alt="Screen Shot 2023-06-09 at 17 04 38"
src="https://github.com/go-gitea/gitea/assets/17645053/3fc00e94-bcd4-4e06-b1d8-93be0576dbc3">


# After

<img width="1421" alt="Screen Shot 2023-06-09 at 18 32 47"
src="https://github.com/go-gitea/gitea/assets/17645053/c2a0f9df-cac4-4197-9cbd-6c16dfef215b">

On hover:

<img width="1431" alt="Screen Shot 2023-06-09 at 18 32 54"
src="https://github.com/go-gitea/gitea/assets/17645053/d0ab6fde-9722-4d76-831b-163fd6a1f560">

templates/repo/actions/runs_list.tmpl

@@ -1,16 +1,16 @@
 <div class="issue list gt-m-0">
 	{{range .Runs}}
-		<li class="item gt-df gt-py-3 gt-ab">
-			<div class="issue-item-left gt-df gt-mr-2">
+		<li class="item gt-df gt-py-4">
+			<div class="issue-item-left issue-item-icon gt-df gt-items-start">
 				{{template "repo/actions/status" (dict "status" .Status.String "locale" $.locale)}}
 			</div>
 			<div class="issue-item-main action-item-main gt-f1 gt-fc gt-df gt-mr-3">
-				<div class="issue-item-top-row">
-					<a class="index gt-ml-0 gt-mr-2" title="{{.Title}}" href="{{if .Link}}{{.Link}}{{else}}{{$.Link}}/{{.Index}}{{end}}">
+				<div class="issue-item-top-row gt-mb-2">
+					<a class="index gt-no-underline title action-item-title" title="{{.Title}}" href="{{if .Link}}{{.Link}}{{else}}{{$.Link}}/{{.Index}}{{end}}">
 						{{- .Title -}}
 					</a>
 				</div>
-				<div class="desc issue-item-bottom-row gt-df gt-ac gt-fw gt-my-1">
+				<div class="desc issue-item-bottom-row gt-df gt-ac gt-fw">
 					<b>{{if not $.CurWorkflow}}{{.WorkflowID}} {{end}}#{{.Index}}</b>: {{$.locale.Tr "actions.runs.commit"}}
 					<a href="{{$.RepoLink}}/commit/{{.CommitSHA}}">{{ShortSha .CommitSHA}}</a>{{$.locale.Tr "actions.runs.pushed_by"}} {{.TriggerUser.GetDisplayName}}
 					<span class="ui label">