Standardize top-level directory paths

Anything which needs to be (at least partly) touched by stow should stay
in the top-level normal directory name that they are. Anything that
*only* concerns the repository, not the dotfiles, should be moved into a
hidden folder, preceded by a dot.

These directories should still contain a `.stow-local-ignore` file
patterning everything which should not show up in stow (i.e. `^/.*`,
everything) since it is not guaranteed that stow will ignore the
.dotfile directories. The installation script does ignore them on its
own, for now, but is not guaranteed to in the future either.

.gitignore

@@ -6,3 +6,5 @@ colorscheme.vim
 colorscheme
 colorscheme.py
 colorscheme.rasi
+
+.assets/README.md

_assets/NOTES.md

@@ -1,51 +0,0 @@
-## Unfinished ideas
-
-* Read out tmux session / window / panel names (or, for panels/windows, the names of programs running) and pass them to rofi for it to show them and allow 'tabbing' to them a-la Alt-Tab windows
-
-## Implementables
-
-### styler
-
-* [x] styler should be able to present a list of all installed packages/processors/themes
-* [ ] styler should have an additional display for each application that a theme is available
-* [x] use same style for processors as for packages
-* [x] enable downloading
-  * [x] from github / link > user inputs author/repo and it automatically downloads package/processor (decided by name)
-  * [x] so, `styler download chriskempson/base16-vim` will automatically clone into package directory
-* [x] `styler download marty-oehme/yabam16-vim` will automatically clone into processor directory
-  * [x] `styler download someone/any-string-here` should also automatically download into processor dir, but print a warning
-* [ ] enable suggestion of missing packages when downloading processors
-  * [ ] some processors contain `readonly dependency=("author/package")` format to make sure they run against the right package
-  * [ ] when this is the case and the package does not exist, warn the user or propose to automatically download the package
-* [ ] enable suggestion of processors/packages when running empty download
-  * [ ] `styler download` should suggest some processors to download (i.e. applications), and either suggest packages or make use of the previous suggestion and have them automatically suggested when installing the processor
-* [x] enable switch for theme switching/permanent theming through styler
-  * [x] styler should, by default, only *switch* applications to the new theme but not make the theme default
-  * [x] when invoked with saving switch, the processors should make sure that the theme will be the default theme for the next run of the application
-  * [x] perhaps styler should invoke processors with additional "switch" "save" first variable being passed, which they will use to differentiate
-* [ ] enable shell completion for themes
-* [ ] read configuration from configrc file (containing processors/packages to download, applications to set?)
-* [ ] Bug: duplicate processors mess it up
-* [ ] Find out which *applications* will be styled (perhaps grep comparison of processors/packages and if both have an application name, display this)
-* [ ] Feature: styler processor calling could be extended for a post-hook, which would be run after setting the new themes. So, it could work like `processor variables "switch"`, `processor variables "set"`, `processor variables "post"`, to have these hooks. Hooks could even be extended to switch_pre, switch, switch_post, set_pre, set, set_post; though perhaps YAGNI.
-* [ ] Feature: add `get` option, where you can input an app/processor and it displays its current theme; or do `get` without argument to display it for each app/processor?
-* [ ] a better way to set a processor and package which should target an app
-  * [ ] packages do not know about styler (and shouldn't), processors *do*, processors should carry the information of which packages they can be used for, and should recommend package installation on download
-* [ ] the process workflow/lifecycle:
-  * [ ] styler gathers all processors (with some algorithm deciding which takes precedence for applications)
-  * [ ] the processors carry dependencies on packages, styler ensures these are met
-  * [ ] styler sources the processes and calls, in order
-    * [ ] set_pre   -- called before any process sets themes
-    * [ ] set       -- called for each processor in turn
-    * [ ] set_post  -- called after each processor sets themes
-    * [ ] theme_pre -- called before each processor switches themes
-    * [ ] theme     -- called for each processor in turn
-    * [ ] theme_post-- called after each processor switches themes
-
-### processors
-
-* [x] shell should set shell colors even when invoked through rofi
-  * [x] shell should set it for *all* terminals, not just the one it ran it (through pgrep?)
-* [ ] shell should be able to save the colorscheme permanently
-* [x] qutebrowser should be able to save the colorscheme permanently
-* [x] vim should actually save the colorscheme, not just the name of it?