fix fmt warnings

shared-lib/flowy-collaboration/src/document/extensions/insert/preserve_block_format.rs

@@ -1,4 +1,4 @@
-use crate::util::is_newline;
+use crate::{document::InsertExt, util::is_newline};
 use lib_ot::{
     core::{DeltaBuilder, DeltaIter, NEW_LINE},
     rich_text::{
@@ -10,7 +10,6 @@ use lib_ot::{
         RichTextDelta,
     },
 };
-use crate::document::InsertExt;
 
 pub struct PreserveBlockFormatOnInsert {}
 impl InsertExt for PreserveBlockFormatOnInsert {

shared-lib/flowy-collaboration/src/document/extensions/insert/reset_format_on_new_line.rs

@@ -1,9 +1,8 @@
-use crate::util::is_newline;
+use crate::{document::InsertExt, util::is_newline};
 use lib_ot::{
     core::{CharMetric, DeltaBuilder, DeltaIter, NEW_LINE},
     rich_text::{RichTextAttributeKey, RichTextAttributes, RichTextDelta},
 };
-use crate::document::InsertExt;
 
 pub struct ResetLineFormatOnNewLine {}
 impl InsertExt for ResetLineFormatOnNewLine {