Apply JuliaFormatter to fix code formatting

[ChrisRackauckas]

Summary

• Applied JuliaFormatter to ensure consistent code formatting
• Formatted 22 files to comply with SciML style guide

Changes

 .JuliaFormatter.toml      |  3 ++
 README.md                 | 18 +++++++----
 demo/birth_death.jl       |  6 ++--
 demo/telegraph.jl         |  8 ++---
 docs/make.jl              | 29 +++++++++--------
 docs/src/examples.md      | 10 +++---
 docs/src/index.md         | 15 ++++-----
 docs/src/indexhandlers.md |  2 +-
 docs/src/internal.md      | 18 +++++++----
 docs/src/mainapi.md       |  5 +--
 docs/src/matrix.md        |  7 +++--
 docs/src/tips.md          | 11 ++++---
 docs/src/troubleshoot.md  | 10 +++---
 src/build_rhs.jl          | 17 +++++-----
 src/build_rhs_ss.jl       |  9 +++---
 src/fspsystem.jl          | 23 ++++++++------
 src/indexhandlers.jl      | 28 ++++++++---------
 src/matrix.jl             |  5 ++-
 test/birthdeath2D.jl      | 74 +++++++++++++++++++++++--------------------
 test/feedbackloop.jl      | 80 ++++++++++++++++++++++++-----------------------
 test/runtests.jl          | 12 +++++--
 test/telegraph.jl         | 68 +++++++++++++++++++++-------------------
 22 files changed, 251 insertions(+), 207 deletions(-)

This PR was automatically generated by OrgMaintenanceScripts.jl

[ChrisRackauckas]

domluna/JuliaFormatter.jl#930