settings ui: Add missing setting elements (#39644)

Added the following settings to the UI

Editor Page - Scrollbar Section (9 settings)
- Show
- Cursors
- Git Diff
- Search Results
- Selected Text
- Selected Symbol
- Diagnostics
- Horizontal Scrollbar
- Vertical Scrollbar

 Editor Page - Minimap Section (6 settings)
- Show
- Display In
- Thumb
- Thumb Border
- Current Line Highlight
- Max Width Columns

Editor Page - Editor Behavior Section (3 settings)
- Expand Excerpt Lines
- Excerpt Context Lines
- Minimum Contrast For Highlights

 Debugger Page (7 settings)
- Stepping Granularity
- Save Breakpoints
- Timeout
- Dock
- Log DAP Communications
- Format DAP Log Messages
- Button

 Panels Page - Git Panel Section (3 settings)
- Button
- Dock
- Default Width

Collaboration Page - Experimental Section (4 settings)
- Auto Microphone Volume
- Auto Speaker Volume
- Denoise
- Legacy Audio Compatible

Release Notes:

- N/A

crates/settings/src/settings_content.rs

@@ -383,7 +383,18 @@ pub struct DebuggerSettingsContent {
 
 /// The granularity of one 'step' in the stepping requests `next`, `stepIn`, `stepOut`, and `stepBack`.
 #[derive(
-    PartialEq, Eq, Debug, Hash, Clone, Copy, Deserialize, Serialize, JsonSchema, MergeFrom,
+    PartialEq,
+    Eq,
+    Debug,
+    Hash,
+    Clone,
+    Copy,
+    Deserialize,
+    Serialize,
+    JsonSchema,
+    MergeFrom,
+    strum::VariantArray,
+    strum::VariantNames,
 )]
 #[serde(rename_all = "snake_case")]
 pub enum SteppingGranularity {