Bugfix: fix the large blank space issue in the blue & photo themes

Ref 
https://github.com/sbrl/Pepperminty-Wiki/blob/master/Changelog.md#fixed-3

Changelog.md

@@ -38,6 +38,7 @@ This file holds the changelog for Pepperminty Wiki. This is the master list of t
  - Really fix bots getting into infinite loops on the login page this time by marking all login pages as `noindex, nofollow` with a robots `<meta />` tag
  - Navigating to a redirect page from a page list will no longer cause you to automatically follow the redirect
  - Limited sidebar size to 20% of the screen width at most
+ - Fix the [large blank space problem](https://github.com/sbrl/Pepperminty-Wiki/blob/master/Changelog.md#fixed-3) in all themes
 
 
 ## v0.21
@@ -455,7 +456,7 @@ _(No changes since v0.15-beta2)_
  - Fixed handling of pages and tags with single quotes in the name
  - Fixed weirdness on some pages rendered by the Pepperminty Wiki core
  - Fixed a few minor usability issues on the upload file page.
- - Removed some extra space at the bottom of some pages.
+ - Removed some extra  at the bottom of some pages.
  - The `raw` action now sends a 404 if the request page doesn't exist on the wiki.
 
 ### Changed

themes/blue/theme.css

@@ -287,12 +287,14 @@ a.redlink:visited{
 textarea[name=content]{
 	resize:none;
 }
-.fit-text-mirror{
-	position:absolute;
-	left:-10000vw;
-	word-wrap:break-word;
-	white-space:pre-wrap;
+.fit-text-mirror {
+	position: absolute;
+	top: 0;
+	left: -10000vw;
+	word-wrap: break-word;
+	white-space: pre-wrap;
 }
+
 main label:not(.link-display-label){
 	display:inline-block;
 	min-width:16rem;

themes/photo/theme.css

@@ -134,7 +134,7 @@ textarea, #tags, #search-box {
 	box-sizing: border-box;
 	
 }
-.fit-text-mirror { position: absolute; left: -1000000px; }
+.fit-text-mirror { position: absolute; top: 0; left: -10000vw; word-wrap: break-word; white-space: pre-wrap; }
 .awesomplete { width: 100%; }
 
 textarea, input:not([type=submit]):not([type=button]) {