Fix searching by clicking title/artist in beatmap overlay not following original language setting

[Joehuu]

• Regressed in Double-quote in beatmap listing when searching by artist/title #29745
• Addresses Beatmap title/artist click doesn't search for the original language title/artist #29823
• Framework bump (for Expose LocalisationManager.GetLocalisedString() as public osu-framework#6377)

May also be used in song select title/artist context menus (left-click already searches in song select locally on v2 component).

[bdach]

In general my primary question would be why this entire PR is what it is and not something like

diff --git a/osu.Game/OsuGame.cs b/osu.Game/OsuGame.cs
index 0ef6a94679..1af86b2d83 100644
--- a/osu.Game/OsuGame.cs
+++ b/osu.Game/OsuGame.cs
@@ -445,10 +445,15 @@ private void load()
                     break;
 
                 case LinkAction.SearchBeatmapSet:
-                    if (link.Argument is RomanisableString romanisable)
-                        SearchBeatmapSet(romanisable.GetPreferred(Localisation.CurrentParameters.Value.PreferOriginalScript));
+                    if (link.Argument is LocalisableString localisable)
+                    {
+                        var localised = Localisation.GetLocalisedBindableString(localisable);
+                        SearchBeatmapSet(localised.Value);
+                        localised.UnbindAll();
+                    }
                     else
                         SearchBeatmapSet(argString);
+
                     break;
 
                 case LinkAction.FilterBeatmapSetGenre:
diff --git a/osu.Game/Overlays/BeatmapSet/BeatmapSetHeaderContent.cs b/osu.Game/Overlays/BeatmapSet/BeatmapSetHeaderContent.cs
index f9e0c6c380..a50043f0f0 100644
--- a/osu.Game/Overlays/BeatmapSet/BeatmapSetHeaderContent.cs
+++ b/osu.Game/Overlays/BeatmapSet/BeatmapSetHeaderContent.cs
@@ -242,7 +242,7 @@ private void load(OverlayColourProvider colourProvider)
                     title.Clear();
                     artist.Clear();
 
-                    title.AddLink(titleText, LinkAction.SearchBeatmapSet, $@"title=""""{titleText}""""");
+                    title.AddLink(titleText, LinkAction.SearchBeatmapSet, LocalisableString.Interpolate($@"title=""""{titleText}"""""));
 
                     title.AddArbitraryDrawable(Empty().With(d => d.Width = 5));
                     title.AddArbitraryDrawable(externalLink = new ExternalLinkButton());
@@ -259,7 +259,7 @@ private void load(OverlayColourProvider colourProvider)
                         title.AddArbitraryDrawable(new SpotlightBeatmapBadge());
                     }
 
-                    artist.AddLink(artistText, LinkAction.SearchBeatmapSet, $@"artist=""""{artistText}""""");
+                    artist.AddLink(artistText, LinkAction.SearchBeatmapSet, LocalisableString.Interpolate($@"artist=""""{artistText}"""""));
 
                     if (setInfo.NewValue.TrackId != null)
                     {

which just gets rid of the weird LinkAction splittage.

(The .UnbindAll() call is weird but required to prevent leaks because non-bindable GetLocalisedString() is internal on LocalisationManager. Not sure it should be.)

[Joehuu]

Just forgot GetLocalisedBindableString() exists, have applied.

[bdach]

FWIW, I would like to get rid of the weird unbind via ppy/osu-framework#6377.