Remove yakuake configurations

+ Migrate yakuake configs to a branch with a full DE
+ Update `.bash_aliases` to include `kapp-update` and `kapp-git`
+ Add conditional sourcing of untracked `.bash_secrets` file, if it exists

.bashrc

@@ -57,9 +57,9 @@ if [ -n "$force_color_prompt" ]; then
 fi
 
 if [ "$color_prompt" = yes ]; then
-    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\][\u@\h\[\033[00m\] \W\[\033[01;32m\]]\$\[\033[00m\]'
+    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
 else
-    PS1='${debian_chroot:+($debian_chroot)}[\u@\h \W]\$ '
+    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
 fi
 unset color_prompt force_color_prompt
 
@@ -84,8 +84,6 @@ if [ -x /usr/bin/dircolors ]; then
     alias egrep='egrep --color=auto'
 fi
 
-# Alias / export customizations
-
 # colored GCC warnings and errors
 #export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
 
@@ -98,8 +96,9 @@ alias l='ls -CF'
 #   sleep 10; alert
 alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
 
-
-# Edit ~/.bash_aliases, instead of adding them here directly.
+# Alias definitions.
+# You may want to put all your additions into a separate file like
+# ~/.bash_aliases, instead of adding them here directly.
 # See /usr/share/doc/bash-doc/examples in the bash-doc package.
 
 if [ -f ~/.bash_aliases ]; then
@@ -116,4 +115,4 @@ if ! shopt -oq posix; then
     . /etc/bash_completion
   fi
 fi
-
+. "$HOME/.cargo/env"