Auto release resources on inactive pages

• experimental: auto release resources on inactive pages,
  to prepare for Manifest V3 of extensions
• fix broken copying images on Chrome 107
• fix it may cause initing of big pages very slow (#751)
• Vomnibar: fix a second run is too slow on Chrome 102+
  • fix unexpected white background color on Firefox 106+
  • change labels for tabs and now support :active and :new
  • vomnibar options: styles field: support wheel-speed=<number>
• LinkHints: improves "tooHigh" mode and support longPage=true to disable it
• VisualMode: caret mode: allow aw and as to select a range, but not unconditionally collapse into one character
• plain insert mode: now allow mapKey x <v-xxx> to create shortcuts like : + xxx
• runKey: change the way of parsing nested runKey commands to work with .mask better
  • vimium://run in search engines: queries are joined by %20 by default
• add/open bookmark: add path and support both folders and URL nodes
• dispatchEvent: add trusted=true to make Vimium C itself handle the simulated keys
• now can detect focused editable boxes in more edge cases
• fix many small bugs and add more parameters for command