Speed Up QC App Load Time

[daniel-slaugh]

I've been running the QC app in a local dev environment and it takes about 8 seconds to load the initial page. This should be sped up before we release it in v1.11. Potential bottlenecks to start with:

• Remove redundant Font Awesome loading. QC doesn’t use Font Awesome, but loads it three times: CDN stylesheet in index.html, Blocking Font Awesome kit in index.html, Bundled CSS in plugins/vuetify.ts
• In main.ts, user loading and workspace loading are currently sequential. Wrap them in Promise.all()
• Workspaces are loaded in main.ts, then loaded again when Workspaces.vue mounts. Skip the second request when availableWorkspaces is already populated, or add a cache guard
• Add a loading shell to index.html. This doesn't speed up the initial page load, but it prevents the long blank screen
• Similarly, consider skeleton loaders
• Replace static plotly.js-dist imports with a cached dynamic loader such as getPlotly(). Lazy-loading the Plot.vue component alone is insufficient while stores and plotting utilities still import Plotly statically
• Consider a new server endpoint specifically for the QC app. The app's initial page over-fetches a bit with a half dozen concurrent requests. It would be better to have a single lean request
• Replace the 403 KB MDI font with tree-shaken SVG icons