Removed duplicate whitespace in source code

Removed duplicate whitespacing in source code. It is also all over the license (most likely supposed to be so), and in some part of the resources (untouched) :

`./resources/translations/otter-browser_en_GB.ts: <source>POST  Method</source>
./resources/translations/otter-browser_es_ES.ts: <source>POST  Method</source>
./resources/translations/otter-browser_tr_TR.ts: <source>POST  Method</source>
./resources/translations/otter-browser_nl.ts: <source>POST  Method</source>
./resources/translations/otter-browser_en_US.ts: <source>POST  Method</source>
./resources/translations/otter-browser_sr@latin.ts: <source>POST  Method</source>
./resources/translations/otter-browser_uk_UA.ts: <source>POST  Method</source>
./resources/translations/otter-browser_sk.ts: <source>POST  Method</source>
./resources/translations/otter-browser_sr@ijekavianlatin.ts: <source>POST  Method</source>
./resources/translations/otter-browser_et.ts: <source>POST  Method</source>
./resources/translations/otter-browser_zh_CN.ts: <source>POST  Method</source>
./resources/translations/otter-browser_zh_CN.ts: <translation>以 %1  搜索之</translation>
./resources/translations/otter-browser_ro.ts: <translation>Şterge  parole</translation>
./resources/translations/otter-browser_ro.ts: <source>POST  Method</source>
./resources/translations/otter-browser_sr.ts: <source>POST  Method</source>
./resources/translations/otter-browser_pl_PL.ts: <translation>Tytuł  sesji:</translation>
./resources/translations/otter-browser_pl_PL.ts: <source>POST  Method</source>
./resources/translations/otter-browser_de_DE.ts: <source>POST  Method</source>
./resources/translations/otter-browser_pt_PT.ts: <source>POST  Method</source>
./resources/translations/otter-browser_ru_RU.ts: <source>POST  Method</source>
./resources/translations/otter-browser_id_ID.ts: <source>POST  Method</source>
./resources/translations/otter-browser_lt.ts: <source>POST  Method</source>
./resources/translations/otter-browser_pt_BR.ts: <source>POST  Method</source>
./resources/translations/otter-browser_cs_CZ.ts: <source>POST  Method</source>
./resources/translations/otter-browser_it_IT.ts: <translation>Cancella cookie  </translation>
./resources/translations/otter-browser_it_IT.ts: <translation>Carattere Sans-serif  </translation>
./resources/translations/otter-browser_it_IT.ts: <translation>Totale:  %1 </translation>
./resources/translations/otter-browser_it_IT.ts: <source>POST  Method</source>
./resources/translations/otter-browser_it_IT.ts: <translation>Finestra  %1 </translation>
./resources/translations/otter-browser_it_IT.ts: <translation>Ripristina la sessione &lt;session&gt;  se esiste</translation>
./resources/translations/otter-browser_sr@Ijekavian.ts: <source>POST  Method</source>
./resources/translations/otter-browser_fr_FR.ts: <source>POST  Method</source>`