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]'.

configs/NZXT/i3blocks/i3blocks.conf

@@ -26,7 +26,8 @@
 # The top properties below are applied to every block, but can be overridden.
 # Each block command defaults to the script name to avoid boilerplate.
 align=center
-command=/usr/share/i3blocks/$BLOCK_NAME
+# command=/usr/share/i3blocks/$BLOCK_NAME
+command=~/linux-config/configs/i3blocks-scripts/$BLOCK_NAME
 separator=true
 separator_block_width=25
 markup=pango