Copied i3blocks scripts from orig dir

Some were modified from original but can't be bothered to check which.
'backlight' is custom. Changed both PC/laptop i3blocks config to
reference new i3blocks-scripts location.

system: Fixed keyboard repeat rate for PC/laptop.
Git: Added amending commit and forcing push aliases.
i3: Changed '$mod+F[1-3]' mappings to just 'F[1-3]'.

.gitignore

@@ -5,3 +5,4 @@ temp.sh
 konsole.shortcuts
 commit-msg.txt
 core
+ideas.md