Quaero v0.6.0

What's Changed

• docs(site): landing update — PostgreSQL, sourced comparison, demo video (#201, #203) by @danielnuld in #279
• feat(i18n): foundation for English support — ES/EN with autodetect by @danielnuld in #280
• docs(readme): English README as primary, Spanish as README.es.md by @danielnuld in #281
• docs(site): English landing at /en/ + shared stylesheet by @danielnuld in #282
• feat(i18n): translate the connection sidebar; pin the test locale by @danielnuld in #283
• feat(i18n): translate the top action ribbon + tool catalog by @danielnuld in #284
• feat(i18n): translate the SQL editor toolbar + context menu by @danielnuld in #285
• feat(i18n): translate the editor empty state by @danielnuld in #286
• feat(i18n): translate the result grid by @danielnuld in #287
• feat(i18n): translate the object-action toolbar + result pane by @danielnuld in #288
• feat(i18n): translate the object tree sidebar by @danielnuld in #289
• feat(i18n): translate tab titles + palette commands by @danielnuld in #290
• feat(i18n): translate the server-monitor + slow-queries panels by @danielnuld in #291
• feat(i18n): translate the routine + trigger explorers by @danielnuld in #292
• feat(i18n): translate the users & privileges panel by @danielnuld in #293
• feat(i18n): translate the chart + ER diagram panels by @danielnuld in #294
• feat(i18n): translate the query builder + notebook panels by @danielnuld in #295
• feat(i18n): translate the object-list view + row detail by @danielnuld in #296
• feat(i18n): translate the information pane by @danielnuld in #297
• fix(frontend): editor quoting, editable queries + foreign-key browser by @danielnuld in #301

Full Changelog: v0.5.5...v0.6.0