Fixes and improvements before release

[zrezke]

• [x] Fix selection panel expanding whenever configuration panel resizes cb05c3ab41899cf46a9fb5616427ccfa55ca0b61
• [x] Fix IMU plots being visible when they shouldn't be, (when scrolling) 5464ad3fc1f0a11ffb394ba3f854027df813a94a
• [x] Fix config and stats tabs not being able to be viewed at the same time because of IMU state reset c5837111600a2fb4d2ef265749d18e909133800d
• [x] Add apply button to postopne applying pipeline changes, make panels reappear when subscription comes back online after being turned off f9fbfc60fd1671fbab8a4957337f4b0aef7c4b06
• [x] Fix LR streams not showing up because subscriptions are not set! https://github.com/zrezke/rerun/pull/15
  • [ ] Possibly refactor setting subscriptions and setting visible space_views etc to be in one place
• [x] Fix padding in config ui, and make it scrollable f70b85c4479762a87433194592f8cc36dc4da06c
• [x] Handle: [error] Disparity/depth CENTER alignment requires left-right check mode enabled!
• [x] Fix rerun not updating in bg (opened issue in egui: https://github.com/emilk/egui/issues/2944), memory issue effectively fixed: 9d40325f0c5a9c898bba0d3b760cc0e028c21e7e
• [x] Put backend into rerun repo
• [x] Nuke DataChannel, use rr.log dirrectly
• [x] Rename executable to depthai-viewer
• [x] Change colors
• [x] Log left ot right mono under camera when aligning depth to it
• [x] #3
• [x] Make default views for different devices
• [x] Xlink throughput stats