UploadMediaDetailInputFilter: added pattern to identify colon (#5451)

Added hex code of colon for MediaDetailInputFilter and updated test for it.

Author: rohit9625

app/src/main/java/fr/free/nrw/commons/upload/UploadMediaDetailInputFilter.java

@@ -20,6 +20,7 @@ public UploadMediaDetailInputFilter() {
             Pattern.compile("[\\x{00A0}\\x{1680}\\x{180E}\\x{2000}-\\x{200B}\\x{2028}\\x{2029}\\x{202F}\\x{205F}]"),
             Pattern.compile("[\\x{202A}-\\x{202E}]"),
             Pattern.compile("\\p{Cc}"),
+            Pattern.compile("\\x{3A}"), // Added for colon(:)
             Pattern.compile("\\x{FEFF}"),
             Pattern.compile("\\x{00AD}"),
             Pattern.compile("[\\x{E000}-\\x{F8FF}\\x{FFF0}-\\x{FFFF}]"),

app/src/test/kotlin/fr/free/nrw/commons/upload/UploadMediaDetailInputFilterTest.kt

@@ -61,7 +61,7 @@ class UploadMediaDetailInputFilterTest {
         builder.filters = arrayOf(UploadMediaDetailInputFilter())
 
         //Sample of control characters
-        val tests = intArrayOf(0x00, 0x08, 0x10, 0x18, 0x1F, 0x7F)
+        val tests = intArrayOf(0x00, 0x08, 0x10, 0x18, 0x1F, 0x7F, 0x3A)
         for (test: Int in tests) {
             builder.insert(0, String(Character.toChars(test)))
             Assert.assertEquals(builder.toString(), "")