Exclude "." from file path suggestions

It looks funny and doesn't have any value.

pkg/gui/controllers/helpers/suggestions_helper.go

@@ -103,7 +103,9 @@ func (self *SuggestionsHelper) GetFilePathSuggestionsFunc() func(string) []*type
 				if err != nil {
 					return err
 				}
+				if path != "." {
 					trie.Insert(patricia.Prefix(path), path)
+				}
 				return nil
 			})