Rework settings

[Kuuuube]

Summary of changes:

Welcome Page:

- Removed Scan delay (in milliseconds) (note: it has been moved to advanced in settings and we shouldn't be showing advanced settings on the welcome page)
- Removed Auto-hide search popup

- Moved "Quick Start Guide" to a separate page and added a category and button to access it from the welcome page

- Added language select option

- Bolded Recommended Permissions (Important), added warning when not enabled, success message when enabled, moved to top of the page

Settings Page:

Moved:
- Moved General category above Dictionaries category
- Moved Frequency sorting dictionary from General to Dictionaries
- Moved Result grouping mode from General to Result Display
- Moved Reading mode from Text Parsing to Appearance
- Moved Auto-hide search popup from Scanning to Popup Behavior
- Moved Hide popup on cursor exit from Scanning to Popup Behavior

Renamed:
- Popup Appearance category renamed to Appearance (note: it was already named Appearance on the sidebar, its settings affect things besides the popup so this name is better)
- Enable content scanning renamed to Enable Yomitan
- Popup to Popup Behavior

Added to advanced:
- Dictionaries:
  - Frequency sorting dictionary
    - Frequency sorting mode (note: we already detect whether a freq sorting dict is occurance based or rank based, this setting is only needed when the dict is bugged)
- Scanning:
  - Scan delay (in milliseconds)
- Text Parsing:
  - Parse sentences using Yomitan's internal parser
- Clipboard:
  - Maximum clipboard text search length
- Appearance
  - Reading mode
  - Configure custom CSS...

Removed from advanced:
- Dictionaries:
  - Frequency sorting dictionary
- Appearance:
  - Pitch accent display styles

Added warning:
- Scanning:
  - Text scan length

Added category:
- Result Display

Open to feedback and additional changes.

[github-actions]

⚠️ Visual differences introduced by this PR; please validate if they are desirable.

View Playwright Report (note: open the "playwright-report" artifact)

[StefanVukovic99]

I think reordering the general section is ok, all the things that got moved to advanced also ok.

When moving things out of advanced, I would generally err on the side of keeping them there, so settings are streamlined for new users. Users following guides will necessarily customize a lot of stuff, so they will need Advanced. Specifically, i think there tends to be bias towards features that recently got attention, even though the default is ok for most new users (like the duplicate setting here; don't think the reading mode is changed often either?).

[Kuuuube]

When moving things out of advanced, I would generally err on the side of keeping them there, so settings are streamlined for new users.

I think ideally we want users to not have to use advanced unless they really need to do something out of the ordinary. Some guides will for sure be doing this ofc.

The only one I've pulled out of advanced that I can see being an issue is the anki dupe checking. That one could reasonably go back in for sure.

Frequency sorting dicts almost everyone uses so we shouldn't have that in advanced. And the other 3 appearance options just seem like really basic stuff that should just be there.

[Kuuuube]

Added a Result Display category

[Kuuuube]

Everything should be ready for this PR.

[Kuuuube]

New page looks:

Welcome page	Quick start guide page	Settings page	Settings page advanced

[jamesmaa]

I think after this PR we should really prioritize making it easy to install dictionaries without leaving yomitan. The welcome page looks good and polished enough to fool people into thinking yomitan will work out of the box when in reality that's not the case