Included tag search capabilities (#32045)

Resolves #31998

The first screenshot shows the tag page without any filter being
applied:


![image](https://github.com/user-attachments/assets/eac0e51c-9e48-42b2-bb1c-a25896ca40cb)

The second one, shows the page when the given filter returns no tag:


![image](https://github.com/user-attachments/assets/98df191e-1a7b-4947-b0ef-4987a0293c3e)

The last one shows a single tag being filtered:


![image](https://github.com/user-attachments/assets/79c7e05e-8c86-4f06-b17e-15818b7b9291)

Signed-off-by: Bruno Sofiato <bruno.sofiato@gmail.com>

routers/web/repo/release.go

@@ -214,6 +214,8 @@ func TagsList(ctx *context.Context) {
 	ctx.Data["HideBranchesInDropdown"] = true
 	ctx.Data["CanCreateRelease"] = ctx.Repo.CanWrite(unit.TypeReleases) && !ctx.Repo.Repository.IsArchived
 
+	namePattern := ctx.FormTrim("q")
+
 	listOptions := db.ListOptions{
 		Page:     ctx.FormInt("page"),
 		PageSize: ctx.FormInt("limit"),
@@ -233,6 +235,7 @@ func TagsList(ctx *context.Context) {
 		IncludeTags:   true,
 		HasSha1:       optional.Some(true),
 		RepoID:        ctx.Repo.Repository.ID,
+		NamePattern:   optional.Some(namePattern),
 	}
 
 	releases, err := db.Find[repo_model.Release](ctx, opts)
@@ -241,14 +244,21 @@ func TagsList(ctx *context.Context) {
 		return
 	}
 
-	ctx.Data["Releases"] = releases
+	count, err := db.Count[repo_model.Release](ctx, opts)
+	if err != nil {
+		ctx.ServerError("GetReleasesByRepoID", err)
+		return
+	}
 
-	numTags := ctx.Data["NumTags"].(int64)
-	pager := context.NewPagination(int(numTags), opts.PageSize, opts.Page, 5)
+	ctx.Data["Keyword"] = namePattern
+	ctx.Data["Releases"] = releases
+	ctx.Data["TagCount"] = count
+
+	pager := context.NewPagination(int(count), opts.PageSize, opts.Page, 5)
 	pager.SetDefaultParams(ctx)
 	ctx.Data["Page"] = pager
-
 	ctx.Data["PageIsViewCode"] = !ctx.Repo.Repository.UnitEnabled(ctx, unit.TypeReleases)
+
 	ctx.HTML(http.StatusOK, tplTagsList)
 }