typo fix

[jijn]

• Please check if the PR fulfills these requirements

• The PR follows our guidelines (formatting & style)
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

solver_handler.cc
Fix the indentation issue in the terminal output

triangulation_handler.h
Fix typo

• What is the current behavior? (You can also link to an open issue here)

solving 0th timestep for solve block 0 ...
   solving auxiliary variables...
  ^ extra space here
  solving linear time-independent variables...
  solving self-nonlinear time-independent variables...
  solving co-nonlinear time-independent variables...
  solving postprocessed variables...

• What is the new behavior (if this is a feature change)?
  fix typo

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
  No

• Other information:
  NA

[landinjm]

Thanks!