Fix truncation tests to check output chat history for truncation

New truncation logic return a new message list.
It does not update message list by reference/in place since 8a16f5a.
So truncation tests should run verification on the truncated chat
history returned by the truncation func instead of the original chat
history passed into the truncation func.

Fix to try apply edits at least once. Else behavior/ux is inconsistent

Merge branch 'khoj-ai:master' into master

Merge branch 'khoj-ai:master' into master

Merge branch 'khoj-ai:master' into master

Modify keyboard shortcuts and remove keyboard hint styling

- Update edit block apply/cancel commands to require Shift modifier
- Remove CSS keyboard shortcut hints for edit buttons
- Improve edit block instructions with character escaping guidance

Improve frontmatter removal in targeted edit block processing

Feature: Add toggle for automatic voice response in Obsidian plugin

Chore: Minor configuration file updates

Enhance Khoj plugin search functionality and loading indicators

- Added visual loading indicators to the search modal for improved user experience during search operations.
- Implemented logic to check if search results correspond to files in the vault, with color-coded results for better clarity.
- Refactored the getSuggestions method to handle loading states and abort previous requests if necessary.
- Updated CSS styles to support new loading animations and result file status indicators.
- Improved the renderSuggestion method to display file status and provide feedback for files not in the vault.