Add support to change 🎹 key bindings

[eharrow]

As a user of zellij and lazyjj I want to be able to save the message using the describe popup which being ctrl-s conflicts with zellij (ctrl-s is search).

1. Start lazyjj
2. On a change in the log panel hit d for describe
3. Add some text
4. Use Ctrl-s to save it

Expected: The dialog is dismissed and the description for the change has been made.
Actual: Zellij switches to search mode and it is not possible to save the change's description from lazyjj.

If I could change the key binding to something else in a config dot file this would fix my issue as I'd rather not have to make the key binding change in zellij.

• Log tab feat: configure keybinds #94
• Files tab feat: scroll with mouse faster #137
• Bookmarks tab
• Command log tab
• Details pane

[Cretezy]

I'm open to custom keybindings in the repo. I'll look into adding this. I'm open to PRs as well

[Cretezy]

Partially done in #94 (for log tab). Other tabs can be added in the future

[fleimgruber]

Would be great if we could have this also for the details pane.

Right now I use a crude local patch for key inputs:

diff --git a/src/ui/details_panel.rs b/src/ui/details_panel.rs
index d6082e8..1455bf2 100644
--- a/src/ui/details_panel.rs
+++ b/src/ui/details_panel.rs
@@ -50,6 +50,17 @@ impl DetailsPanel {
     /// Handle input. Returns bool of if event was handled
     pub fn input(&mut self, key: KeyEvent) -> bool {
         match key.code {
+            KeyCode::Char(' ')
+                if key.modifiers.contains(KeyModifiers::CONTROL)
+                    && key.modifiers.contains(KeyModifiers::SHIFT) =>
+            {
+                self.scroll((self.height as isize / 2).saturating_neg())
+            }
+            KeyCode::Char(' ') if key.modifiers.contains(KeyModifiers::CONTROL) => {
+                self.scroll(self.height as isize / 2)
+            }
+            KeyCode::Char(' ') if key.modifiers.contains(KeyModifiers::SHIFT) => self.scroll(-1),
+            KeyCode::Char(' ') => self.scroll(1),
             KeyCode::Char('e') if key.modifiers.contains(KeyModifiers::CONTROL) => self.scroll(1),
             KeyCode::Char('y') if key.modifiers.contains(KeyModifiers::CONTROL) => self.scroll(-1),
             KeyCode::Char('d') if key.modifiers.contains(KeyModifiers::CONTROL) => {