fix updating changed file contents, styling

Dependencies

• [2] WT3GA27P add cursor with selection
• [3] S2NVIFXR allow to enter record msg
• [4] YBJRDOTC make all repo actions async
• [5] A5YBC77V record!
• [6] Z2CJPWZE focus record message text_editor on spawn
• [7] 4WO3ZJM2 show untracked files' contents
• [8] BJXUYQ2Y show untracked file contents in read-only text editor
• [9] CFYW3HGZ wip: display changed files
• [10] W4LFX7IH group diffs by file name
• [11] AMPZ2BXK show changed files diffs (only Edit atm)
• [12] IQDCHWCP load a pijul repo
• [13] UB2ITZJS refresh changed files on FS changes
• [14] 6YZAVBWU Initial commit
• [15] PTFDJ567 add untracked files encoding
• [16] NOB64XMR fmt and clippy

Change contents

• replacement in crates/flowers_ui/src/main.rs at line 11
  [3.99]→[2.437:508](∅→∅),[6.113]→[2.437:508](∅→∅),[11.1394]→[2.437:508](∅→∅),[2.437]→[2.437:508](∅→∅)
  − use iced::{Border, Color, Element, Length, Subscription, Task, Theme};
  [11.1394]

  [5.4438]
  + use iced::{

  + font, Border, Color, Element, Font, Length, Subscription, Task, Theme,

  + };
• edit in crates/flowers_ui/src/main.rs at line 418
  [10.3583]

  [4.12089]
  + state.changed_files_contents =

  + changed_files_contents(&repo.changed_files);
• edit in crates/flowers_ui/src/main.rs at line 456
  [10.3943]

  [4.13131]
  + state.changed_files_contents.remove(path);
• replacement in crates/flowers_ui/src/main.rs at line 923
  [7.9285]→[8.1282:1352](∅→∅)
  − el(column([el(text(format!("{path} diff:"))), diff]))
  [7.9285]

  [7.9339]
  + el(column([view_diff_header(format!("{path} diff:")), diff]))
• replacement in crates/flowers_ui/src/main.rs at line 936
  [9.392]→[9.392:447](∅→∅)
  − el(text(format!("{path} diff:"))),
  [9.392]

  [11.5262]
  + view_diff_header(format!("{path} diff:")),
• edit in crates/flowers_ui/src/main.rs at line 959
  [4.18340]

  [2.4172]
  + }

  +

  + fn view_diff_header(header: String) -> Element<'static, Message> {

  + el(text(header).font(Font {

  + weight: font::Weight::Bold,

  + ..default()

  + }))
• replacement in crates/flowers_ui/src/main.rs at line 974
  [11.5761]→[11.5761:5781](∅→∅)
  − match content {
  [11.5761]

  [11.5781]
  + let change_type = diff.to_string();

  + let content = match content {
• replacement in crates/flowers_ui/src/main.rs at line 987
  [11.6297]→[11.6297:6303](∅→∅)
  − }
  [11.6297]

  [11.6303]
  + };

  + el(column([el(text(change_type)), content]))