Default distance setting: increase 10x

[ilario]

Fix #201

Goes against the decisions implemented in #202 and #324

See the discussion on #201 and on this email thread: https://lists.autistici.org/thread/20230815.142621.071b5fc0.en.html#i20230815.142621.071b5fc0

Here, the default distance setting for 5 GHz radios is being increased from 1 km to 10 km.
And the default distance setting for 2.4 GHz from 100 m to 1 km.

[codecov-commenter]

Codecov Report

Merging #1047 (ef541ab) into master (44043c1) will decrease coverage by 0.03%.
The diff coverage is n/a.

❗ Current head ef541ab differs from pull request most recent head 53a266b. Consider uploading reports for the commit 53a266b to get more accurate results

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@@            Coverage Diff             @@
##           master    #1047      +/-   ##
==========================================
- Coverage   79.75%   79.73%   -0.03%     
==========================================
  Files          53       53              
  Lines        4539     4539              
==========================================
- Hits         3620     3619       -1     
- Misses        919      920       +1     

see 1 file with indirect coverage changes

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[ilario]

Gathered no opinion against this since the start of the discussion via mail, merging.