fix: unify resolution display format to use ASCII 'x'

[wyu71]

Remove Unicode multiplication sign replacement and extra spaces from resolution strings, standardizing to plain 'WxH' format across all display adapter resolution fields.

统一显示适配器分辨率格式，移除 Unicode 乘号和多余空格，
全部使用 ASCII 'x' 格式（如 1920x1080）。

Log: 统一分辨率显示格式为 ASCII x
PMS: BUG-351831
Influence: 显示适配器的当前分辨率、最小分辨率、最大分辨率显示格式统一，不再出现格式不一致的情况。

Summary by Sourcery

Standardize display adapter resolution strings to a consistent ASCII-based format.

Bug Fixes:

• Normalize current, minimum, and maximum resolution strings to remove Unicode multiplication signs and extra spaces, preventing inconsistent resolution display formats across the UI.

Enhancements:

• Simplify construction of current resolution strings by avoiding unnecessary QString formatting helpers while keeping content unchanged.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Standardizes all displayed resolution strings to a consistent ASCII 'WxH' format without spaces or Unicode multiplication signs, and adjusts how current resolution with refresh rate is constructed from xrandr output.

Flow diagram for resolution string normalization to ASCII WxH

flowchart LR
  A[Raw xrandr output line
  e.g. 1920 x 1080] --> B[Regex capture
  width x height groups]
  B --> C[Remove spaces
  1920x1080]
  C --> D[Assign to minResolution
  curResolution
  maxResolution]

  subgraph DeviceMonitor_current_resolution
    E[Match resolution and refresh rate
    e.g. 1920x1080 60.00] --> F[Compute curRate string]
    F --> G[Build current_resolution_without_unicode
    1920x1080@60.00]
  end

  subgraph ThreadExecXrandr_dbus_values
    H[Read maxResolutionWidth
    maxResolutionHeight
    minResolutionWidth
    minResolutionHeight] --> I[Format as %1x%2]
    I --> J[Store maxResolution
    minResolution as WxH]
  end

  D --> K[UI components display
  resolutions as ASCII WxH]
  G --> K
  J --> K

Loading

File-Level Changes

Change	Details	Files
Normalize current resolution strings from xrandr parsing to use raw captured resolution and plain string concatenation instead of Unicode replacement.	Stop replacing 'x' with the Unicode multiplication sign when setting m_CurrentResolution in setInfoFromXradr. Build current resolution with refresh rate using direct string concatenation instead of QString::arg formatting. Ensure resolutions without refresh rate are stored exactly as captured from the regex match.	deepin-devicemanager/src/DeviceManager/DeviceMonitor.cpp
Unify min/current/max resolution formatting from xrandr and D-Bus to compact 'WxH' ASCII format without spaces or Unicode characters.	When parsing xrandr output, strip spaces from min, current, and max resolution strings, and stop converting 'x' to a Unicode multiplication sign for current resolution. When building min/max resolutions from D-Bus width/height values, format them as '%1x%2' with no spaces around 'x'.	deepin-devicemanager/src/Tool/ThreadExecXrandr.cpp

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[sourcery-ai]

Hey - I've left some high level feedback:

• The formatting around the refresh rate is inconsistent: m_CurrentResolution = match.captured(1) + "@" + curRate; vs match.captured(1) + " @" + curRate; — consider standardizing on one exact WxH@rate format without spaces as described in the PR.
• Resolution normalization logic (removing spaces, unifying x, appending @rate) is spread across several call sites; consider extracting a small helper to format resolutions in one place so future changes to the display format stay consistent.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- The formatting around the refresh rate is inconsistent: `m_CurrentResolution = match.captured(1) + "@" + curRate;` vs `match.captured(1) + " @" + curRate;` — consider standardizing on one exact `WxH@rate` format without spaces as described in the PR.
- Resolution normalization logic (removing spaces, unifying `x`, appending `@rate`) is spread across several call sites; consider extracting a small helper to format resolutions in one place so future changes to the display format stay consistent.

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: lzwind, wyu71

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