add previous button

api/tag.go

@@ -72,7 +72,8 @@ func (client *Client) FetchTag(tag string, sort string, page string) (Tag, error
 		func(key, value gjson.Result) bool {
 			url, _ := url.Parse(strings.ReplaceAll(value.Get("url").String(), "https://imgur.com", ""))
 			q := url.Query()
-			q.Add("tag", tag+"."+sort+"."+page+"."+key.String())
+			ts := tag + "." + sort + "." + page + "." + key.String()
+			q.Add("tag", ts)
 			url.RawQuery = q.Encode()
 
 			posts = append(posts, Submission{
@@ -90,6 +91,8 @@ func (client *Client) FetchTag(tag string, sort string, page string) (Tag, error
 				Comments:  value.Get("comment_count").Int(),
 				Views:     value.Get("view_count").Int(),
 				IsAlbum:   value.Get("is_album").Bool(),
+
+				tagstring: ts,
 			})
 
 			return true

api/user.go

@@ -33,6 +33,8 @@ type Submission struct {
 	Comments  int64
 	Views     int64
 	IsAlbum   bool
+
+	tagstring string
 }
 
 func (client *Client) FetchUser(username string) (User, error) {