Remove unused parts, updated my theme

== ALL FILES ==
The org TOCs were unused on export, and Spacemacs makes it useless.
This commits removes them. The startup header of org files is moved to
the header file.

== AWESOME ==
In the Awesome file, this commit removes everything about custom theme
creation as this part is not yet used. I also remade and reorganized
the windows titlebars.
Theme files for Awesome shall be added soon. The wallpaper functions
were updated accordingly.

In the autostart part, I updated some commands (picom will not launch
if another instance is already running, same for the XFCE polkit), and
I added PumoPM to the autolaunched software (power management). Due to
some issues, I also let Awesome one second before launching
`set-screens'.

== AWESOME AND CUSTOM SCRIPTS ==
This commit also removes any usage of pywal. My Awesome configuration
and my custom scripts were updated accordingly.

== CUSTOM SCRIPTS ==
In bin.org, the script `pape-restore' has been removed since it can
now be replaced with the command `nitrogen --restore'. `pape-update'
has also been updated so it doesn’t depend on `pape-restore' and gets
a random wallpaper for nitrogen to set without the help of pywal.

== XRESOURCES / ST AND PICOM ==
St’s transparency was tweaked to match my windows’ titlebar
transparency. It also got the Nord theme mentionned above. Some custom
Picom rule about St’s transparency has been removed.

== PICOM ==
I made it clearer in the index and on Picom’s page Picom is the new
Compton.

== FIREFOX ==
A new git submodule (blurredfox-nord) has been added, which adds some
transparency to Firefox as well as some Nord colors.

== I3 AND POLYBAR ==
My i3 and Polybar config have been deprecated since I do not use them
anymore.

== SPACEMACS ==
Changed shortcuts for config files

org/config/fish.org

@@ -7,49 +7,6 @@
 #+HTML_HEAD_EXTRA: <meta property="og:description" content="Description of the fish config file of Phundrak" />
 #+PROPERTY: header-args:fish :tangle ~/.config/fish/config.fish :exports code :noweb yes
 #+PROPERTY: header-args :exports code :tangle no
-#+STARTUP: content
-
-* Table of Contents                                            :TOC:noexport:
-  :PROPERTIES:
-  :CUSTOM_ID: Table_of_Contents-06250a87
-  :END:
-- [[#presentation][Presentation]]
-- [[#fish-from-within-emacs][Fish from within Emacs]]
-- [[#tramp-remote-access][Tramp remote access]]
-- [[#regular-fish-shell-appearance][Regular fish shell appearance]]
-- [[#global-variables][Global variables]]
-  - [[#development][Development]]
-  - [[#path][$PATH]]
-- [[#abbreviations][Abbreviations]]
-  - [[#system-monitoring][System monitoring]]
-  - [[#system-management-packages-and-services][System management (packages and services)]]
-    - [[#package-management][Package management]]
-    - [[#service-management][Service management]]
-  - [[#development-1][Development]]
-    - [[#cmake][CMake]]
-    - [[#compilation][Compilation]]
-    - [[#docker][Docker]]
-    - [[#git][Git]]
-    - [[#prolog][Prolog]]
-    - [[#text-editors][Text editors]]
-  - [[#latex][LaTeX]]
-  - [[#some-security-measures][Some security measures]]
-  - [[#typos][Typos]]
-  - [[#misc][Misc]]
-    - [[#sudo][Sudo]]
-    - [[#exit][Exit]]
-    - [[#history][History]]
-    - [[#youtube-dl-related-commands][~youtube-dl~ related commands]]
-      - [[#song-download-from-youtube][Song download from YouTube]]
-      - [[#videos-download-from-youtube][Videos download from YouTube]]
-    - [[#mpv][MPV]]
-    - [[#compression][Compression]]
-    - [[#sxiv][Sxiv]]
-    - [[#exa][exa]]
-    - [[#network-management][Network Management]]
-    - [[#nordvpn][NordVPN]]
-    - [[#webcam][Webcam]]
-    - [[#wget][Wget]]
 
 * Presentation
   :PROPERTIES: