Simple maintenance improvements (#1370)

* rofi moved to libera.chat

* unify some theme headers and whitespace

* consistently use the same hashbang for bash

* improve obsolete way of testing equality

see https://github.com/koalaman/shellcheck/wiki/SC2268 for explanation

* use consistent function definitions in bash scripts

* remove duplicated author and fix whitespace

* quote all variables in scripts

fixes many warnings identified through shellcheck

* fix whitespace in scripts

* fix whitespace in non-source files

* fix spelling in non-source files

* fix whitespace and indentation in source files

* fix spelling in source files

1 files changed, 0 insertions, 1 deletions

diff --git a/doc/default_configuration.rasi b/doc/default_configuration.rasi
index 64d7fb84..339dc829 100644
--- a/doc/default_configuration.rasi
+++ b/doc/default_configuration.rasi
@@ -13,5 +13,4 @@ configuration {
         sorting-method:    "name";
         directories-first: true;
     }
-
 }