Add Simphony logo to the login page

[martinRenou]

No description provided.

[stefanoborini]

We need a simphony logo and it must be smaller.

[codecov-io]

Codecov Report

Merging #528 into master will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #528      +/-   ##
==========================================
+ Coverage   95.25%   95.27%   +0.02%     
==========================================
  Files          88       88              
  Lines        3961     4021      +60     
  Branches      248      252       +4     
==========================================
+ Hits         3773     3831      +58     
- Misses        137      138       +1     
- Partials       51       52       +1

Impacted Files	Coverage Δ
remoteappmanager/handlers/base_handler.py	96.07% <0%> (-0.59%)	⬇️
remoteappmanager/base_application.py	97.6% <0%> (-0.08%)	⬇️

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[stefanoborini]

I would not put that file in jupyterhub. That directory is a "startup launchpad". Also, it won't be installed buy the setup that way.

[stefanoborini]

We need a different location for the file, and setup installation for it.

[martinRenou]

Should it be in the static directory of remoteappmanager ?

ok