Minesweep possible additions

[lubojr]

Playability fixes

@spectrachrome

• [x] mine icon change to flower (see 126e93e)
• [x] Make tiles nearly transparent opacity 0.3 with grey color fill, only leaving outline solid color. When tile "revealed" apply color and opacity 0.6 based on "wildlife dataset value". Mines and flags colors stay as were now.
• [x] remove SHOW ALL button, -> hinde under debug query parameter (see 85f6f41)
• [x] click on a mine reveals whole board, create a simple way to completely reset the game to initial state (without the initial popup)
• [x] dropdown menu for location selection is not giving any options except global coverage which does nothing - remove it (see c933353)
• [x] species info box is not applicable for minesweeper game mode, should it be removed? (see 65e965c)
• [x] Could we move the copy to clipboard to the bottom of the popup? (see 924a86a)
• [x] shorten list of animals (display only top 5 based on occurrence, sort) (see f7cf1bf and f9523d2)
• [x] fix empty species in copy-to-clipboard text (see f9523d2)

Non-playability additions:

@lubojr

• [x] more baselayers underneath (Land cover) (050e589e`)
• [x] Initial popup text fixes (see ac4f2051`)
• [x] do not show actual wildlife indicator as "data" layer https://github.com/eurodatacube/eodash/commit/050e589eb565ffb98c8a3bae93d51282670646a6

  try to find locations with very high diversity and mark them with a flower (right click)
  search a hex -> uncover a field
  flag a mine -> flag it with a flower
  Come back to explore more. (remove seed thing), move the current seed to "comment"

[lubojr]

• [ ] The coloring seems somehow randomly off for all types of fields, could be a float rounding error?