fix: sidebar nav text overflow for long translations

- Add text scaling for section labels (TOOLS, ADVANCED) in sidebar
- Separate explorer_section key from explorer nav label to fix ALL CAPS
- Shorten long sidebar translations: es/pt settings, pt overview, ru tools/advanced
- Fix explorer translations from ALL CAPS to proper case in all languages

src/ui/sidebar.h

@@ -557,15 +557,21 @@ inline bool RenderSidebar(NavPage& current, float sidebarWidth, float contentHei
     if (showLabels) {
         ImFont* olFont = Type().overline();
         float olFontSz = ScaledFontSize(olFont);
+        float maxSectionW = panelRight - wp.x - sbSectionLabelPadLeft;
         int si = 0;
         for (int i = 0; i < (int)NavPage::Count_; ++i) {
             if (kNavItems[i].section_label && si < nSectionLabels) {
                 float ly = panelTopY + sectionLabelY[si++];
+                const char* sLabel = NavSectionLabel(kNavItems[i]);
+                float drawFsz = olFontSz;
+                ImVec2 sLabelSz = olFont->CalcTextSizeA(drawFsz, 1000.0f, 0.0f, sLabel);
+                if (sLabelSz.x > maxSectionW && maxSectionW > 0)
+                    drawFsz *= maxSectionW / sLabelSz.x;
                 ImVec4 olCol = ImGui::ColorConvertU32ToFloat4(OnSurfaceMedium());
                 olCol.w *= expandFrac;
-                dl->AddText(olFont, olFontSz,
+                dl->AddText(olFont, drawFsz,
                     ImVec2(wp.x + sbSectionLabelPadLeft, ly),
-                    ImGui::ColorConvertFloat4ToU32(olCol), NavSectionLabel(kNavItems[i]));
+                    ImGui::ColorConvertFloat4ToU32(olCol), sLabel);
             }
         }
     } else {