qutebrowser: Add search engines, download open map

Switched default search engine for my personal searx engine.
Added search engine bangs for duckduckgo (ddg), man-pages (man),
alternativeto.net (alt).

Added key mapping to quickly open last downloaded file, especially
useful for downloaded pdf documents or similar files.
<leader>o will open the last file.

qutebrowser/.config/qutebrowser/config.py

@@ -44,7 +44,9 @@ js_whitelist = [
     "*://old.reddit.com/*",
     "*://todoist.com/*",
     "*://toggl.com/*",
+    "*://clockify.me/tracker*",
     "*://translate.google.com/*",
+    "*://calendar.google.com/*",
     "chrome://*/*",
     "file://*",
     "qute://*/*",
@@ -66,7 +68,7 @@ c.tabs.position = "right"
 c.tabs.width = "15%"
 
 # give the browser nice theme colors
-config.source("colorscheme.py")
+config.source('colorscheme.py')
 
 # Status bar
 # should be visible to prevent 'jumping' bug,
@@ -129,6 +131,9 @@ c.aliases["printpdf"] = "spawn --userscript pagetopdf.sh"
 # set to gp, to mirror gd (download) just as go-Pdfdownload
 config.bind("gp", "printpdf", mode="normal")
 
+# open last download
+config.bind(leader + "o", "download-open")
+
 # set stylesheets for the browser to use
 # leader - ss to remove all applied stylesheets
 config.bind(
@@ -143,7 +148,8 @@ config.bind(leader + "js", "config-cycle content.javascript.enabled true false")
 config.bind(leader + "VV", "config-source")
 
 c.url.searchengines = {
-    "DEFAULT": "https://duckduckgo.com/?q={}",
+    "DEFAULT": "https://search.martyoeh.me/?q={}",
+    "ddg": "https://duckduckgo.com/?q={}",
     "d": "https://www.dict.cc/?s={}",
     "t": "https://www.thesaurus.com/browse/{}",
     "gt": "https://translate.google.com/#auto/de/{}",
@@ -157,4 +163,6 @@ c.url.searchengines = {
     "yt": "https://www.youtube.com/results?search_query={}",
     "maps": "https://www.google.fr/maps?q={}",
     "gol": "https://golang.org/pkg/{}/",
+    "man": "https://manned.org/browse/search?q={}",
+    "alt": "https://alternativeto.net/software/{}",
 }

qutebrowser/.config/qutebrowser/quickmarks

@@ -8,3 +8,4 @@ read https://read.martyoeh.me/
 arch https://wiki.archlinux.org/
 toggl https://toggl.com/app/timer
 clock http://clockify.me/tracker
+cal https://calendar.google.com/calendar/r