feat: use ech for overview charts

[breezewish]

Finally drag-drop to change time range is possible now:

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[codecov-commenter]

Codecov Report

Merging #1241 (adf225c) into master (2cb74ec) will increase coverage by 0.42%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master    #1241      +/-   ##
==========================================
+ Coverage   31.44%   31.87%   +0.42%     
==========================================
  Files         289      297       +8     
  Lines       17013    17092      +79     
  Branches      667      680      +13     
==========================================
+ Hits         5350     5448      +98     
+ Misses      11432    11413      -19     
  Partials      231      231              

Flag	Coverage Δ
be_integration_test_latest	9.29% <ø> (ø)
be_integration_test_v4.0.1	9.32% <ø> (ø)
be_unit_test	24.11% <ø> (ø)
e2e_test	77.15% <80.00%> (+1.28%)	⬆️

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