feat: improve toolbar responsiveness and UI layout

[cjh-store]

• Add responsive toolbar with container query (hide elements at ≤340px)
• Remove unnecessary padding for better message alignment
• Improve assistant message dot visibility with adaptive color
• Update .gitignore to exclude .cursor directory

Summary by Sourcery

Improve toolbar responsiveness with container queries, refine layout spacing and assistant message dot contrast, and update .gitignore rules

New Features:

• Add container-query–based responsive toolbar that hides elements at widths ≤340px

Enhancements:

• Reset body margins and padding and remove excess padding in tool message wrapper for improved layout alignment
• Adjust assistant message dot color with color-mix for better visibility
• Mark toolbar buttons and token indicator percentage as responsive to container queries

Chores:

• Update .gitignore to exclude the .cursor directory

[sourcery-ai]

Reviewer's Guide

This PR enhances UI responsiveness and layout by implementing a toolbar container query with data-responsive attributes for narrow screens, removes excess padding in tool message wrappers for cleaner alignment, adjusts the assistant message dot to use adaptive coloring for better contrast, and updates .gitignore to exclude the .cursor directory.

Class diagram for updated ButtonArea and TokenIndicator components

classDiagram
  class ButtonArea {
    +handleThinkingToggle()
    +data-responsive="hide-small" (on action buttons)
  }
  class TokenIndicator {
    +formattedPercentage
    +data-responsive="hide-small" (on progress-text span)
  }

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Class diagram for updated ToolMessageWrapper and AssistantMessage components

classDiagram
  class ToolMessageWrapper {
    -padding: 0px 8px
    +padding: 0px
  }
  class AssistantMessage {
    -color: var(--vscode-input-border) (dot)
    +color: color-mix(in srgb, var(--vscode-foreground) 60%, transparent) (dot)
  }

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File-Level Changes

Change	Details	Files
Implement responsive toolbar layout with container queries	Reset global body margin and padding Define toolbar container query to hide elements tagged hide-small at ≤340px Annotate toolbar buttons and token indicator with data-responsive=hide-small Add container-type and container-name to toolbar container style	src/webview/src/styles/claude-theme.css src/webview/src/components/ButtonArea.vue src/webview/src/components/TokenIndicator.vue
Remove extra padding in tool message wrapper	Change wrapper padding from 0px 8px to 0px	src/webview/src/components/Messages/blocks/tools/common/ToolMessageWrapper.vue
Enhance assistant message dot visibility with adaptive color	Replace fixed input-border color with a color-mix of foreground and transparency	src/webview/src/components/Messages/AssistantMessage.vue
Update gitignore to exclude .cursor directory	Add .cursor directory to ignore patterns	.gitignore

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[sourcery-ai]

Hey there - I've reviewed your changes - here's some feedback:

• Consider scoping the global body reset to the webview container only, as resetting <body> might unintentionally override host styles or future layout rules.
• Since CSS container queries aren’t supported in all Electron/VSCode versions, add a fallback or feature-detect strategy to avoid layout breakage in unsupported environments.
• Using !important for hiding toolbar elements could lead to specificity wars; try a more specific selector or leverage utility classes instead.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Consider scoping the global body reset to the webview container only, as resetting `<body>` might unintentionally override host styles or future layout rules.
- Since CSS container queries aren’t supported in all Electron/VSCode versions, add a fallback or feature-detect strategy to avoid layout breakage in unsupported environments.
- Using `!important` for hiding toolbar elements could lead to specificity wars; try a more specific selector or leverage utility classes instead.

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