Fixed macOS 27 related issues

The Search Update This version adds persistent tokenised field search to all resource searches Improved API transcript, it now collects more traffic ! Connections are now more stable Various visual bug fixes and updates

* UI refinements all round in all parts of the app * Backend rewrites that modularise key parts of the app making it easier to improve and maintain * Further stats refinement

- Refined connection management with smarter health detection, faster unavailable-state updates, improved reconnect behavior, and clearer validation for incomplete connection setups. - Restored and improved SSH key support, including pasted keys, key-file browsing, clearer SSH error messages. - Improved Message Viewer and Message Publisher workflows with a cleaner inspector, tighter snippet UI, snippet creation from messages, and better source-view behavior. - Added snippet import/export support and broader portable .rmqr improvements, including safer import validation and more flexible connection targeting. - Upgraded resource browsing with column sorting, better refresh behaviour after actions, and smoother list/detail transitions. - Improved charts and graphs with more reliable rendering, better hover behaviour, and fixes for tooltip alignment and line/path issues. - Added retained history for disconnected connections and channels, with controls for visibility and configurable retention limits. - Polished the connection manager and settings UI with cleaner layouts, better badges and indicators, improved filtering behavior, and more consistent controls.

- Improved charts and graph interactions, including more reliable rendering and better hover/tooltip behaviour. - Refined UI across the app with smoother loading states, cleaner detail panels, tighter inspectors, and more polished list views. - Added major Message Viewer and Snippet workflow improvements, including better queue selection, streamlined inspection, snippet creation from messages, and snippet import/export. - Added sortable resource tables with improved refresh behaviour after create/delete/purge actions. - Improved connection handling with smarter health detection, better reconnect behaviour and clearer connection manager status. - Old Connections and Channels are retained for inspection with variable history length. - Various other UI, stability and QoL improvements

* Added better formatting and highlighting in the API Transcript * Updated handling of offline servers * Made transitions between resources smoother * Improved the efficiency of calls to RabbitMQ servers by only getting what we need ! * Improved the way numbers are formatted in stats * Fixed an issue with VHost tags and how they are displayed * Fixed our handling of the Streams plugin * Various UI improvements