Add InputDialog and ShortcutsHelp components; implement Git log graph

[Yashh56]

This pull request introduces several enhancements and new features related to Git log visualization and user interface improvements, as well as updates to dependencies to support these changes. The most significant update is the addition of a new Git log graph endpoint and data structure, which enables richer commit history visualization. Additionally, new UI components for keyboard shortcuts and input dialogs have been added, and several new dependencies (including drag-and-drop and date utilities) have been introduced.

Git log graph and data enhancements:

• Added a new logGraph method to GitService and a corresponding handleLogGraph handler, which returns detailed commit log entries (including parent hashes and refs) for graph visualization. The log entry structure (GitLogEntry) now includes parents and refs fields, and all log-related methods have been updated to support these fields. (bridge/src/services/gitService.ts [1] [2] [3] [4] [5] [6] [7]
• Registered the new git.logGraph handler in the JSON-RPC handler registry. (bridge/src/jsonRpcHandler.ts bridge/src/jsonRpcHandler.tsR297)

UI component additions:

• Added a reusable InputDialog component for user text input in dialogs. (src/components/shared/InputDialog.tsx src/components/shared/InputDialog.tsxR1-R81)
• Added a ShortcutsHelp dialog component and a ShortcutsTrigger button to display and trigger keyboard shortcut help. (src/components/shared/ShortcutsHelp.tsx [1] src/components/shared/ShortcutsTrigger.tsx [2]

Integration of Git log graph in UI:

• Updated the Git status panel to use the new useGitLogGraph hook and increased the log graph entry count, preparing for richer commit history visualization. (src/features/git/components/GitStatusPanel.tsx [1] [2]

Dependency updates:

• Added new dependencies for drag-and-drop support (@dnd-kit/core, @dnd-kit/sortable, @dnd-kit/utilities) and date utilities (date-fns) in both package.json and pnpm-lock.yaml. (F93dd6d4L16R17, [1] [2] [3] [4] [5] [6] [7]

Minor internal improvements:

• Clarified a code comment in the status parsing logic to more accurately describe the meaning of the y variable. (bridge/src/services/gitService.ts bridge/src/services/gitService.tsL236-R240)